Cowon J3 Review

cowonj3 main Cowon J3 Review

“Good news, everyone,” as Hubert J. Farnsworth would say.

One might believe not much has changed since Cowon released the S9. On paper, the J3 is basically the same player, just with and additional MicroSD slot and a speaker. Fans of Cowon players already know: the company is usually trying to reinvent the wheel with every new player – changing hardware layout, user interface, and general design cues willy-nilly, as if there’s no brand recognition to worry about.

So Cowon actually trying to improve on a winning player like the S9, trying to go an evolutionary route rather than the ‘revolutionary’ way is something that doesn’t happen very often. Whoever read my reviews of the Cowon O2 and V5 video players knows what I’m talking about – the latter is in many aspects worse than the former, even if it has the same basic form factor and feature set premise. No evolution, no building on tried and proven interface aspects, Cowon starting from scratch once again, and failing.

The J3 however is a very different beast. It took all the good aspects of the S9’s design, hardware- and firmware-wise, and made them better, seemingly organically and effortlessly. The form factor is an improvement, the tactile buttons are better placed and have a better feel to them, the interface is even more responsive, and easier to operate. The additional MicroSD slot is a godsend, and the battery life is even better than on the S9.

No need to play the suspense card and the old “read on to find out” teaser – the J3 is simply the best player Cowon ever made. Be my guest if you still want to read on, though.

  • Cowon J3 Specs
  • Capacity: 4/8/16/32GB internal, MicroSDHC slot up to 32GB
  • Display: 3.3″ 480x272px capacitive AMOLED touchscreen
  • Battery life: max. 64h for music, max. 11 hours for video
  • Audio: MP3, WMA, OGG Vorbis, FLAC, APE, WAV, AAC/M4A (unofficially)
  • Video: AVI, WMV, ASF, MP4 (unofficially) / DivX, XviD, WMV7/8/9, h.264 (unofficially)
  • Subtitles: SMI, SRT (unofficially)
  • Image viewer: JPEG, baseline and progressive
  • Document viewer: TXT
  • Bluetooth: 2.0, A2DP, AVCRP
  • Transfer modes: MSC, MTP
  • Additional features: Speaker, FM radio, voice recorder, line-in recorder, Flash 7 support, calculator, notepad, typist, stop watch, countdown, comic viewer, alarm, sleep timer, pan/balance
  • Included accessories: earbuds, USB cable, software CD, quick start manual


Accessories are on the very basic side. The J3 comes with an almost proprietary USB cable, a set of cheap earbuds, and not much else. Not much else meaning, a CD with some software that doesn’t need to be installed, and a quick start manual that doesn’t mention half the features of the J3.

I wrote ‘almost proprietary’ for the cable because the J3’s USB port is actually a standard in South Korea, enforced by the Korean Telecom, and used by almost all cellphones and many MP3 players there, including most new iRiver and Samsung models. It is the same cable the S9 already used, and we’re probably going to see it on many more players to come. It’s nice seeing Cowon cables becoming standardized, slowly but steady. For the eight Cowon players I have, I only need six different cables in the meantime.

The included earbuds are not worth mentioning, they’re don’t do justice to the sound quality the J3 is capable of. People using Cowon players usually provide their own higher quality headphones or IEMs anyways, so in reality Cowon could actually save a few cents and stop bundling those sub-par earbuds with their players altogether.

Other accessories have to be bought separately, such as the TV-out cable (composite, 3xRCA), and the line-in cable (female 3.5mm stereo jack). Any standard USB AC charger will work with the J3, but Cowon sells one of those too in their JetMall store. Of course there are also official and third-party cases and silicone skins to be had.

Design, Build, Specs

The J3 certainly looks fetching, understated. While the S9 felt a bit hollow and the side panels – especially on the ‘chrome’ version – were fake plastic/metal, the J3 feels more substantial, yet not heavier. It has the exact same measurements, length- and width-wise, but it’s a bit thinner than its predecessor. It’s very pocketable. The strip of anodized aluminum at the bottom is real metal. It doesn’t have any functionality, but it doesn’t hurt either. The slightly curved bottom edge seems to be Cowon’s new thing – the iAudio 9 and the X7 have a similar form factor. It’s the first generation of Cowon players that share some similar design cues; most players before the current batch were uniquely shaped.

The rest of the J3’s front real estate is occupied by the gorgeous 3.3” AMOLED screen, protected by a fairly scratch- and impact-proof layer of Corning Gorilla Glass. It’s a capacitive touch screen that’s very responsive, provides excellent contrast ratio, and doesn’t suffer from washed out viewing angles at all. Contrary to AMOLED screens found on Sony players and such, the J3’s color rendition is much more natural, not as oversaturated by far. With a resolution of 480 x 272, the pixel density is just right for a 3.3” screen, not blocky looking at all. It’s no good in direct sunlight, same as most other OLEDs and TFTs, but that’s to be expected.

The buttons on the J3 are perfectly fine, better than on the S9. They’re all placed in ergonomic positions on the sides of the player, and have a good tactile feedback. The best improvement Cowon made with the J3 is the power button. Almost all Cowon players before the J3 had a slider that turned the player on and doubled for a hold switch. While this was ok, the J3’s push-button is just better, much more elegant, in my opinion. A long push turns the player on or off, a short push engages hold, a second short press turns the screen off. While the screen is in hold mode, the buttons can still be used, which is immensely practical as well. This feature can be turned off, but it’s really better the other way. Another great feature is sleep mode, which can be mapped on the power button. Instead of a full power-off, which would require a ~10-15 second database refresh on every startup, the played starts up instantly that way. I didn’t notice any battery drain from sleep mode, so I use it all the time.

The J3 provides all the tactile buttons one needs on the go – contrary to the D2, i9, O2, V5, and other Cowon players that lack those buttons and are a hassle to use while out and about, without looking at the screen. There’s dedicated volume buttons that work on any screen (not just the music screen), FFWD/REW/skip buttons, and a play/pause button that doubles as a ‘home’ button when pushed longer.

On the backside of the player there’s the slot for the speaker, the microphone, and the reset hole. I never had to use the reset hole, since the player never acted up on me. The microphone is the microphone is the microphone – it’s what one would expect from a player such as this. Voice recordings sound ok, nothing special. The same can be said about the speaker. Don’t sell your B&W or Dynaudio home setup, the J3’s speaker is no match for them. It works ok for audiobooks or TV shows where you don’t care about sound quality, but that’s about it. It sure is a welcome addition for some people, but it’s of course neither overly good sounding nor overly loud.

The one thing I dislike about all modern Cowon players is the latch that hides the USB port and SD slot. I’m not aware of many other manufacturers feeling the need to hide those – it’s just one more needless step to perform when connecting the player or swapping the MicroSDHC card. On the J3 you need a decent length finger nail to get the tiny latch open. When a headphone with an angled plug is plugged in, it gets in the way – it needs to be turned to the side or unplugged first. It’s not a really big deal, but one of these days I might just cut that latch off.

On the inside of the J3, among other things, is the battery (or at least I hope so). Cowon’s battery life claim of 64 hours for audio and 11 hours for video are of course exaggerated as always, using synthetic benchmarks, but real usage shows that the J3 is still among the best, as far as stamina goes. With regular ~640×480 XviD videos and EQ/BBE turned on I get 7 or 8 hours movies galore on average; with LAME VBR MP3s and EQ/BBE turned on I certainly get over 40 hours of listening.

User Interface

It’s pretty simple: the J3 has the best UI Cowon ever managed to create. It took all the good ideas of the S9’s interface and improved them. It’s easier and more natural to use than the S9, and it stomps all over their older players like the D2, or their painfully counterintuitive PMPs.

In general the capacitive touchscreen UI is very snappy, no lag to be noticed anywhere – in that aspect it’s right up there with the best of the best, like the iPod Touch or Zune – but of course the J3 has about ten times more features than those players, so creating an UI that handles as nicely as this one is especially laudable.

Like most Cowon UIs, the J3’s speaks mostly ‘icon’, not English or any other language. Some of the icons don’t make much sense at first, but after a short round of trial and error (or by actually reading the manual) everyone should be able to familiarize themselves with the logic of the menu items in no time.

There are three main menu screens to choose from, depending on one’s taste. The first one resembles basically the standard iPod Touch interface, as already found on the Cowon S9, the second is like the Zune HD interface, with a vertically scrolling text list, and the third one is the average ‘Korean’ interface – overly cute and colorful icons and widgets, as found on Samsung players and such. Those main screens can be customized to varying degrees – all three support wallpaper backdrops, the list-style one can be reordered, and the widget screen is a veritable playground where everything can be moved around, and shiny animated items can be added and removed.

File/tag browser lists, the text reader, and the image viewer have rudimentary multi-touch support. Text and image sizes can be altered easily with a two finger pinch-to-zoom gesture, which is rather practical. The J3 is also the first Cowon player that has a file/folder search function with onscreen keyboard. For music, it works for both file/folder and ID3 tag browsing mode. Search isn’t limited to music, however – videos, images, documents, and basically everything else on the player’s memory can be searched for.

For music files, the internal memory and SD card are separated when using file/folder browsing, and they’re merged into one when using tag browsing. That’s the usual way as far as music browsing goes (except for Creative players and other broken ones) – but for video files Cowon pulled a new trick out of the hat. When browsing movies from within the video player interface, the internal and external memory are merged into one as well. This is a first, as far as I know, and sure is very practical.

Same as the S9, the J3′s interface is built entirely in Flash 7, and the necessary ActionScript developer guides can be found for download from Cowon’s site. This means anyone – with the necessary skills – can build their own user interface. I must admit, I actually didn’t try any third-party user interfaces on the J3 yet, since I’m perfectly happy with the stock one. However, all the readily available UIs made by the S9 community should work with very little tweaking on the J3 as well.

A video says more than a thousand words, so here’s the interface in all its glory. (The video has no sound; do not adjust your set.)

Transfer Modes

The J3 supports default USB MSC (mass storage class) transfer mode, the same any external USB hard disk or memory stick uses. Using this mode, the J3 shows up as a device with a drive letter in Windows Explorer, OS X Finder, Nautilus, or what-have-you. It’s a standard, and it just works. One can drag and drop with MSC, or use any media manager app to sync files with the player.

The other transfer mode supported by the J3 is MTP (media transfer protocol), a protocol conceived by Microsoft to support locked down DRM files which you rent – but don’t own. Luckily, DRM for audio is a concept that’s almost dead, especially since the biggest of all online music stores, iTunes, went DRM-free. DRM only punishes legit customers anyways; it doesn’t stop piracy in the least. In an ideal world, MTP would be a standard like MSC, and it would work – but on the J3 it clearly doesn’t. The way Cowon implemented MTP on the J3 is questionable and a real hassle to use.

Some examples: you cannot drag’n’drop videos over to the J3 in MTP mode (at least on Windows XP with WMP11 installed), it simply refuses to transfer them to the player, quits with an error. For JPEGs you always get the obnoxious message, “this file type is not supported, do you really want to transfer it?” – while of course JPEGs are indeed supported on the J3. For no apparent reason all MP3s transferred to the J3 in MTP mode will lose their embedded album art. Album art for MP3s transferred in MSC mode works perfectly fine. Average transfer speed of MTP is much slower than MSC (database rebuild takes equally long for both modes). The list goes on… some of these issues can be fixed by using a decent media manager app, such as J.River, which lets you transfer videos and images without silly error messages, but other features like embedded album art are simply broken.

All in all, the MTP ‘experience’ on the J3 is a rather frustrating one. If you don’t plan to rent DRMed music, there’s no reason to put up with all those nuisances, since MSC mode works perfectly fine. One other valid reason to use MTP mode is if you like to scrobble your listened tracks to – in MTP mode you can use apps like QTscrobbler for transferring your play counts, which doesn’t work in MSC mode.

A word of warning to close this chapter: there have been some reports that the J3 (or any other new Cowon player) might get bricked when it’s connected to a Mac OS X computer. OS X writes garbage files, such as “.Trashes” or “.DS_Store”, to the memory of the player, and Cowons don’t like that at all. They might stall at next bootup, won’t connect to a computer anymore, which renders them unusable. Luckily, there’s the TCCtool application made by a Rockbox developer, which effectively lets you unbrick the J3 (and other Cowon players based on a Telechips SoC), no matter what state it is in.


As an audio player, the J3 is nearly perfect, at least for my needs. The music screen looks clean, tidy, all necessary options are accessible with a few taps. It’s elegant and easily controlled on the go with the five tactile buttons on the side of the player (play/pause, volume +/-, FFWD/REW/skip).

Same as all newer Cowon players, the J3 supports gapless playback, there are no annoying pauses or clicks/pops between tracks where there shouldn’t be any. I haven’t had gapless failing on me with even a single file, it really works well.

The J3 plays all regular and not so regular audio formats, lossy and lossless. It also supports AAC/M4A audio perfectly fine, even if the specs don’t say so. If you bought your DRM-free albums from iTunes you don’t have to convert them. AAC tags are correctly supported; the only thing not supported with AAC is embedded album art, but having a cover.jpg in the folder fixes that easily.

Album art spans the whole screen width and looks gorgeous on the AMOLED display. It can either be embedded for most formats that allow it, or one simply puts a cover.jpg in the album’s folder. There are no issues using 1000x1000px JPEGs or even higher, the J3 doesn’t skip a beat (as long as they’re no progressive JPEGs). Tilting the J3 from portrait to landscape mode reveals a cover art based browser, with 10 album covers per page. I’ve seen better implementations than Cowon’s, mainly on the Sony A845 and Samsung R0, but Cowon’s cover art browser works fairly well to. It’s much faster and more responsive than the one found on the older Cowon S9.

Another feature to mention is the J3′s capability of changing playback speed in a 50% to 150% range, in 10% steps. Optional pitch correction is available too.


So, how does it sound? It sounds perfectly fine, it can drive low and not so low impedance phones without any issues. The really good part about the J3 is that it doesn’t hiss much, even with the most sensitive and finicky to drive multi-armature IEMs, such as the Shure SE530 or Ultimate Ears UE11. Other Cowons generally hiss more and aren’t that enjoyable with low-impedance/high-sensitivity IEMs as the J3, especially in quiet surroundings at low listening levels.

I’m not going into any delusional audiophile ramblings here, instead I AB-tested the J3 against two of my references, my Echo AudioFire sound card and my Sansa Clip+ (yes, this inconspicuous $30 player is a reference product), in a volume matched setting. Conclusion: they all sound the same with a ‘flat’ output (without EQ or other sound enhancements), which of course is a very good thing. Same as any other decent player, the J3 reproduces audio material faithfully, and you can’t really top that. It can go loud enough and provides enough power for even 150 Ohm phones, or even more. Just remember to not choose Europe as region on first startup; otherwise the player will be crippled by arbitrary EU volume restriction laws. If you already chose Europe, you can simply delete the param.cfg file from your J3′s system folder. This will reset the player to defaults, and on next startup you can choose ‘worldwide’ as a region without restrictions. Just make sure to write down your favorite BBE/EQ settings, since they will be lost too (your files on the J3 will stay untouched).

Of course the ace up the J3’s sleeve, setting it apart from other brand players, is its DSP-laden assortment of BBE sound enhancements and its well working pseudo-parametric EQ. BBE is arguably the best sounding bunch of algorithms found on portable players nowadays. Listening to BBE side by side with Sony’s DSEE, Samsung’s DNSe, or the rather awful SRS WOW audio stuff shows that there’s simply no comparison. BBE just sounds clearer, more natural, and more dynamic than the competition. Of course some people might prefer a different sound signature – boomier, more bloated bass than BBE M3B can achieve, or similar – but at least from a technical standpoint BBE is the clear winner.

I called the EQ ‘pseudo’ parametric, because the center frequencies for all five EQ bands can’t be chosen arbitrarily, there’s only three frequencies per band to chose from. This is usually plenty enough for most needs, and after all it’s a hardware limitation of the Wolfson DAC chip used in the J3, no way around that. Being a hardware EQ means it doesn’t hog CPU cycles and is easier on the battery than an EQ implemented in software.

For the various BBE settings and the EQ there’s four user preset slots, letting one mix and match the various enhancements to fit one’s taste. There are also some hard-coded BBE presets such as BBE ViVA and BBE Headphone, which sound rather nice. Then there are also over 30 of Cowon’s own presets, which aren’t really that great in general. These presets have names such as ‘Maestro’, ‘Rap’, ‘Feel the Wind’, and so on. They also implemented a cheesy reverb algorithm which sounds like the usual ‘bathroom’ reverb found on Realtek soundcard drivers. This somehow devaluates the whole upper-class BBE tweaks, but one doesn’t have to use it, so all is fine.

Playlists, Bookmarks, Audiobooks

Multiple bookmarks per file are supported, and stored in a browse- and searchable list. The J3 also remembers where it was in a file, after powering off. Cowon call that feature ‘resume’ – but actual playback doesn’t resume, the J3 just remembers its place. One has to manually push play after powering on, even if ‘resume’ is turned on. It’s a weird design decision, I wish they just made it resume properly.

People complained about Cowon’s sub-par playlist support in the past, and the J3 shows no improvement. It supports only one on-the-go playlist, called ‘favorites’, which can be edited on the player itself. A further limit is that only 250 files are allowed in the favorite list.

Multiple playlists, made on a computer, can be used on the J3 as well. Unfortunately it’s a major hassle to do so, and Cowon’s manual and support website doesn’t provide any help or explanations on how to create them successfully. Lately, users on various forums found that standard M3U playlists won’t work well (they only work for the internal memory), the J3 rather accepts PLA playlists transferred in MTP mode. Those should work more or less, but they still suffer from various unnecessary issues. For example, these playlists are automatically lost once the J3 is connected to a computer in MSC mode. Personally, I don’t use playlists, but I can feel for the people that do. Cowon really needs to improve in that aspect.

Another issue is audiobook and podcast support – or rather, the complete lack thereof. While other brands, like Sansa for example, has really nifty support for audiobooks, completely separating them from music files, with auto-bookmarking, auto-resume, and file skip prevention, there’s no such thing on the J3. Shuffling the whole music selection stored on the J3 doesn’t prevent audiobook chapters from being in the mix, and folder advance often goes from music to audiobooks (or vice versa) as well. When I try falling asleep to an audiobook, I sometimes wake up again to some not quite as calming – and much louder, since the J3 doesn’t support Replaygain – Black Metal or Dubstep track.

I would really appreciate if Cowon implemented proper audiobook features – and Replaygain, for that matter.


Despite the fact that the J3 doesn’t support modern video codecs and containers, such as main/high h.264 profiles, MP4 or MKV, I prefer its video interface and AMOLED screen so much over the O2 and V5 that I don’t mind transcoding the occasional movie for the J3 to make it compatible. It unofficially supports h.264 baseline profile (no CABAC), which is rather weird since Cowon keeps quiet about it. Maybe that’s due to licensing issues? I don’t know, it’s as curious as the J3’s AAC support, which isn’t mentioned anywhere.

The J3 does support all average MPEG4-SP codecs, such as DivX and XviD, but h.264 just saves a lot of space and looks noticeably better at the same – or even lower – bitrates. WMV/ASF is also supported, as expected – yet basic MPEG1 isn’t. As far as regular XviD AVIs go, I’ve had no issues playing up to ca. 800×600 movies, with bitrates far above 2000-3000kbps. The J3 is pretty powerful in that aspect, yet unfortunately for h.264 encoded videos one has to use some very specific settings to get it working.

Another undocumented feature is SRT subtitle support. The official specs only mention SMI, which really isn’t that popular. SRT is arguably the most widespread basic soft-sub format, so it’s very good to have that on the player. Anime fans, forget about fancy styled formats like SSA/ASS, those won’t work. Subtitle support on the J3 is in general rather advanced. One can change font size and color, resync the subs – even dual subs are supported. That seems to be a popular feature in Korea, having native and foreign language subs at once.

Seeing how well subtitle support is implemented makes me wonder why they forgot dual-audio track support. To watch movies with commentary on the secondary audio track one has to transcode the movie and put it a second time on the player. I hope a future firmware update might fix that, to save me some hassle.

The one thing I always found to be the most ridiculous flaw on Cowon’s full-fledged PMPs is that they do not support BBE sound enhancements or EQ for movies – yet their ‘non-PMPs’ such as the J3, S9, i9 perform perfectly well in that aspect. Once you watched a movie with BBE Mach3Bass or ViVA, it’s hard to go back to boring flat sound.

Same as in audio mode, video playback speed can be altered in a 50% to 150% range, in 10% steps, with optional pitch correction.

Back to the excellent interface I already rambled on about above. The main video screen is mostly transparent, icons and bars are semi-transparent. That’s a huge improvement over the usual interfaces Cowon used in their PMPs. They were mostly too busy, hogging too much screen real estate, and distracted from the movie when one wants to just have a quick look at the progress bar or such.

All relevant settings, such as EQ/BBE, subtitle controls, or pan/scan/zoom are just a click away. My favorite feature is a very subtle one, by the way – while a movie is playing, one can’t skip to the next one by accident. The FFWD/REW buttons (both onscreen and tactile) only act for forwarding and rewinding. If one wants to skip to the next or previous movie, one has to pause the movie, and only then the buttons act as skip. Simple, yet ingenious. Tactile buttons are another major complaint with Cowon’s PMPs as well – they only have two buttons for volume (or FFWD/REV in hold mode), not even a play/pause button that can be easily hit, which is a joke. Having all tactile controls on the J3 is a major advantage.

Clicking the file browser button from within the video screen brings up the aforementioned specific video list, which merges the internal and external memory into one coherent list – something I’ve never seen before on any other player. This video list view also generates thumbnails from the first few seconds of the movies, in remarkable speed. Probably not the most important feature, but due to its speed it doesn’t get in the way either. The J3 also remembers the place in all videos, letting one continue to watch right where one left off. This is shown in percents below the single video thumbnails. This is usability done right.


The J3’s FM radio works fairly well, its reception is strong enough in most locations I tried. It’s not as strong as a dedicated quality FM radio, but I’ve heard much worse in MP3 players.

It has auto- and manual scan modes and can store up to 24 presets. As a hidden bonus, one can edit the radio.ini file found in the J3’s system folder, and add names to the station presets. That’s not quite up to RDS standards, but practical nevertheless. Radio can be recorded, either manually or automatically, with a set timer. Recordings are in WMA, up to 256kbps 44.1kHz.

A really shnazzy feature is that the radio supports EQ and BBE sound enhancements as well, same as the audio- and video player.

One feature I would like to see for the J3’s radio is the play/pause button mapped to work as a mute switch. It doesn’t do that, but it should be fairly trivial to implement.

Additional Stuff

Image Viewer

The image viewer does its job, more or less. It’s not particularly great from a usability standpoint, but of course photos look stunning on the AMOLED screen. It’s not smart enough to auto-rotate images to fit the screen; instead one has to turn the screen until the J3’s tilt-sensor feels inclined to turn the image, or push the rotate icon. Images can be zoomed to their original size by a double-tap on the screen, or pinch-zoomed to any size with a two finger multitouch gesture.

Somehow the touchscreen response in the image viewer is quite a bit worse than on other screens of the UI, and taps/double-taps often misfire and don’t do anything. Same goes for the tilt-sensor, images sometimes just don’t rotate. I’d rather have a two-finger-rotate multitouch gesture than being dependent on the tilt sensor. Going to the next or previous image is also a bit laggy – depending on image size – which means the viewer doesn’t pre-cache the next image.

The only other features the image viewer provides are a basic slideshow where you can change the delay between images, and the functionality to set the current image as wallpaper for the main screens. The wallpaper function respects the currently set zoom/crop factor chosen on the screen, which is rather nice.


The pompously named ‘Documents’ feature is just a basic text reader. It doesn’t support any advanced document formats such as RTF, DOC, PDF, or ePub – just plain text. The good thing about it is that there’s no obvious file size limit. I read a full 400-page novel on the J3 without issues (thanks to Project Gutenberg).

The text reader supports bookmarks, different font- and background colors, and adjustable page auto-scroll. Same as for browser lists and images, pinch-to-zoom is supported to change the font size. Audio playback continues in the background, if one wishes to listen to some tunes while reading.

Calculator, Stopwatch, Typist, Notepad, Comix

All those apps do their job, not much else to say about them. The difference between notepad and typist is that one lets you scribble on the screen (with various colors and stroke widths), the other one has an on-screen keyboard. The stopwatch has a lap mode, and also a nifty countdown timer, which comes in handy when I brew some tea or boil some eggs.

The comic viewer is basically useless; a 480×272 screen is way too small to read average comic scans comfortably. That would need at least an 800×480 screen, or preferably a screen with over 1024px width to eliminate the need to pan/scroll around like crazy. The J3 doesn’t support standard CBR/CBZ comic archives or PDFs either, only plain JPEGs.

Line-in/Voice Recorder

With the line-in cable (sold separately) the J3 is capable of recording from external sources; with its built-in microphone it makes for a decent basic voice recorder. Microphone and line sensitivity can be adjusted in five volume steps.

Recordings are unfortunately only possible in WMA format, up to 256kbps, 44.1kHz. There’s no MP3, WAV, or other – more open, practical – formats to choose from. For serious recordings one certainly has to look at a more professional recorder.


The alarm function is well thought out. It allows setting an alarm that goes off once, or a daily repeating one. Sources can be the audio player, radio playback, or scheduled radio recording. Alarm duration can be set to always on, or up to 120 minutes, in 20 minute steps.

The sleep timer can be set to up to 120 minutes, in 10 minute steps. Same as most other players out there, the sleep timer resets after each player startup. Since I use the J3 almost daily while falling asleep to some music or videos, I wish it had a persistent sleep timer, so I don’t have to set it daily. It’s quite the hassle to constantly set it up, since it’s hidden quite deep in the system menu.


Two Bluetooth profiles, A2DP (audio streaming) and AVRCP (audio remote), are supported on the J3. Any kind of syncing or file transfer isn’t supported – considering the slow speed of Bluetooth that wouldn’t be a really useful feature anyways. Pairing the J3 with a Bluetooth transmitter works instantly and hassle-free, the J3 can store profiles for up to seven Bluetooth devices in its settings.

I’ve tested the J3’s Bluetooth capabilities with a rather good receiver, the Sony HBH-DS205, and sound quality was actually quite pleasing. BBE effects and EQ are supported over Bluetooth. Remote functions, such as play/pause or track skipping, worked flawlessly as well.


Same as most other new Cowons, there’s support for Flash apps and games. It’s limited to Flash 7/Flash Mobile, so don’t expect super-fancy new stuff to work on it. Some amusing time wasters can be found, but generally Flash is nowhere as tightly integrated as, say, iPod or Android apps – so don’t expect too much from that feature.


For some reason Cowon chose to hide the left/right pan/balance setting for audio in the system settings menu, not in the audio menu. For me – and many other people, as I learned in our forums – this feature is a dealbreaker when it’s missing on a player. My ears are imbalanced, my left ear is quieter than my right one, thus I can’t use any player without pan/balance setting – which means I can’t use most brand players out there, except for Cowon, Archos, or Rockboxed ones. Why almost all manufacturers don’t implement that most basic of all features – next to a volume control – is beyond me.

Cowon chose a somewhat weird approach for pan/balance on their newer players, such as the J3, S9, and i9 – balance doesn’t go 100% to the left or right, but only about 50%. For me that’s more than enough, but for some people with even more defective ears than mine this might be an issue. Nevertheless – thank you Cowon, for caring about the not so small number of ‘imbalanced’ people out there.


Well, that should more or less cover the basics of the J3. Needless to say, it’s my favorite player at the moment. It does very much right and very little wrong. It might look like an iPod Touch or Zune HD on a cursory glance, but it doesn’t try to be a jack of all trades: the J3 is simply an excellent audio and video player, and that’s about it. Its focus on those two main features shows – it is a delight to use, and it can be tailored to meet ones needs, contrary to players with fewer audio/video features and less customizations, where the user has to follow the direction the manufacturer dictates.

People who read my forum posts know that I’m an avid supporter of the free open source Rockbox project (well, my name is in the Rockbox credits list, so I’m probably not hating it that much). I like freedom, useful features, usability, and quality. For my personal audio player needs, Rockbox only has two advantages over the J3: Replaygain support and scrobbling in MSC mode. Other than that, the J3 does everything I want, I couldn’t ask for more. To be fair, the J3 of course does have features as well that are missing from Rockbox, such as FFWD/REW with sound, support for embedded album art, BBE sound enhancements, and so on. It’s basically a tie – which is more than can be said for most other players out there, at least from my subjective point of view.

As a video player the J3 is very pleasing to use as well, it’s just hindered a bit by not supporting modern container formats like MP4, not playing HD movies, and no support for secondary audio tracks and other delicacies that can be found on dedicated PMPs. Still, it’s way easier to use than Cowon’s own (sub-par) PMPs, and it rocks BBE and EQ for video too. I’m very satisfied with that and rather convert MP4s and MKVs to play on the J3 than using my O2 or V5 for videos.

Dear Cowon, since it’s almost Christmas, here’s my wish list: please make a 4.7” 800×480 AMOLED PMP with the UI, tactile buttons, and features of the J3, just with more modern video codec/container support – this would surpass the A3, O2, V5 by so much, it wouldn’t even be funny. That’s just a little advice for reclaiming your PMP market share and credibility in the ‘Western’ world (seems Koreans like your PMPs the way they are), and for rekindling my enthusiasm for your video players. The J3 is the best you ever achieved – just stick with that and go from there, for your future audio- and video players.

Final words? Player of the year. Not cheap, but definitely worth it – highly recommended for people looking for a serious audio/video player.


  • Excellent build quality, excellent AMOLED screen
  • Excellent user interface, snappy capacitive touchscreen
  • Excellent battery life
  • Great assortment of tactile buttons, easy to use on the go
  • BBE sound enhancements and 5-band pseudo-parametric EQ (for audio and video)
  • Gapless playback
  • Little to no hiss with even the most sensitive in-ear phones
  • Unofficial AAC/M4A audio and rudimentary h.264/MP4 video support
  • MicroSDHC expansion slot, good integration of internal and external memories


  • Annoying latch/cover for USB and SD slot
  • Doesn’t support modern video codecs/containers
  • Sub-par playlist support
  • Sub-par audiobook/podcast support
  • Broken, buggy MTP support


The Cowon J3 can be bought (for a reasonable price) from,, or


yuki on November 28, 2010 11:18 PM

Fantastic images on top of the review.

Martin Sägmüller on November 28, 2010 11:20 PM

I’ve made sharper ones, with better lighting… not 100% satisfied with those. But thank you, Yuki. :)

MarvintheMartian on November 28, 2010 11:28 PM

Replaygain would indeed be awesome. Other than that looks pretty good!

Adub on November 28, 2010 11:41 PM

I’ve been waiting for this and you we’re very thorough. If only other websites didn’t rush reviews *cough*Engadgetgizmodocnet*cough* ohhh phew excuse me.

Great read, and I’m looking forward to my J3 purchase hehe.

Sansae260noob on November 28, 2010 11:46 PM

Amazing Review! Extremely detailed and well written. Based on the review, this player looks amazing. With the Playlist problem, isn’t that something that could be fixed in a firmware update?

k_j on November 28, 2010 11:52 PM

Geez, dfkt, you talk too much! Do you ever shut up?!

Hahaha, just kidding, great review :P

Martin Sägmüller on November 28, 2010 11:54 PM

Mr. Odd on November 29, 2010 12:37 AM

Is there a limit to the number of audio files it will see? I seem to recall other Cowon flash players having something like a 4000 track limit. 64gb will hold a lot more than that.

Andrew B on November 29, 2010 12:55 AM

Wow thumbs up for a fantastic review, haven’t seen one like this in ages.
I was telling my dad to buy one of these since he needs an MP3 player with line-in.
The only ones nowadays are the Cowon and iriver brands. Well for Australia that is.
Haha I gotta show my dad this review. :P

sonorguy on November 29, 2010 1:48 AM

Fantastic review, thank you! I was already planning on having the J3 be my next player, this just made me all the more happy about it. And I share Yuki’s sentiments, great pictures! This review was well worth the wait.

windspear on November 29, 2010 3:14 AM

huzzah, the front page isn’t so…dead anymore!!!! thought it was turning into generationmp3s site :P

BEN4UNYC on November 29, 2010 5:48 AM

Great review! I currently have the Sony Walkman X Series 16gb and my baby is almost full. I was thinking of just getting 32gb X Series but after reading this review I think I’ll check out the Cowon J3 32gb. I found it on line for $270.00 compared to the Sony X Series 32g for $399.99.


KirbyLeo on November 29, 2010 9:24 AM

is the fm receiver built in. ive heard they rely on stock buds with the fm receiver built in the cable

tirim4 on November 29, 2010 2:22 PM

Good review but you forgot one of the best feutures of the J3 (and S9), the UCI support!

Martin Sägmüller on November 29, 2010 3:30 PM

KirbyLeo, sure, FM functionality is built in. You can use any IEM or headphone for antenna, no need to use the stock earbuds.

Martin Sägmüller on November 29, 2010 3:40 PM

Tirim4, you’re right, I totally forgot about that. Mainly because the J3 stock UI is so good, I really didn’t feel the need to tweak/pimp it like I had to do with the S9. While the S9 really got better with Claw’s UI and such, the J3 already surpasses that, IMO. EDIT: I added a paragraph about the Flash UI to the review, thanks again for the reminder, Tirim!

lestatar on November 29, 2010 5:24 PM

dfkt: How come I am not terribly surprised by your verdict? ;)

Awesome review and pics as usual – Cowon, please take note! You _can_ get stuff right when you put your minds to it…

BruceBanner on November 30, 2010 12:59 AM

next can we please have the x7 vs j3 battle to the death review :D

McDougal on November 30, 2010 1:50 AM

I just want to say that I think you did an awesome job on this review. This player looks truly awesome, and in a way I think its better than Rockbox. Easily the best Cowon player made.

Thanks for the great review :) !


shinybeast on November 30, 2010 3:23 AM


Many thanks for your thorough and thoughtful review. For me, sound quality trumps all other considerations (in an MP3 player that is). As a frequent visitor to this site, I often wonder whether some folks have become distracted from this rather central function of an MP3 player. My Zen player (with ATH CM700 phones) now over 3-years old, delivers better sound quality than I had ever believed was possible on such a portable device (admittedly, until a few years ago I simply had no idea that tiny IE phones could deliver such depth and breadth of sound). Lately the general consensus seems to be that Creative has lost its way, though again, not clear whether this is in the area of audio quality or something else, such as touchscreen technology. As I look to replace the aging Zen, my gaze has rested upon the J3 and X7. As someone who has obviously listened long and listened well, I would very much appreciate your thoughts on the head-to-head sound quality of the J3 vs. the current X-Fi2. If it’s the J3 that gets the nod, is it safe to assume that the X7 would be identical to the J3 with regard to audio? And finally, I didn’t catch your reply as to whether the playlist function could be addressed through firmware update. Apologies for this over-long post, but if you’ve read this far, thanks again for the very useful information you have already provided…


Darryl Sperber on November 30, 2010 4:37 AM

Excellent writeup!

As someone else asked about, you might just add the 8,000 file limit (music + video I think, is where that limit applies) on combined internal and external storage in your “capacity” specs. That’s probably “infinite” for most people, but still deserves to be mentioned I would think.

Again, it was well worth the wait for this review.

siva kumar reddy on November 30, 2010 7:58 AM

PLAYLISTS!! PLAYLISTS!! i am thinking of selling of my D2 due to lack of play list organizing support. can any body tell me nice alternatives?

for all other things i like my D2.

one should be able to create play lists online and save them too for later use.

the stupid dynamic play list will not allow me to dynamically organize songs for various moods.

kulhous on November 30, 2010 12:28 PM

Thank you for very nice review. If my D2 will broke soon, I know what to buy ;)

T4b on November 30, 2010 1:15 PM

would have loved to see the speaker up front, not on the backside…

Ferahgo on November 30, 2010 9:03 PM

WOW! I never realised Cowon was actually able to produce a decent player after all the horrendous reviews in the last year.

Does 2.23 – precisely the entry
“- Fixed the error that m3u files were not recognized correctly when SD card was inserted.”
fix the m3u-problem you mentioned?

Martin Sägmüller on November 30, 2010 11:16 PM

Ferahgo, you better ask that question in the forums. Personally, I don’t use playlists at all, I’m not sure what the status quo is. Here’s a good link:

LuizG on December 1, 2010 3:06 PM

Does anyone know if Cowon J3 can play flac files at 24bits/96kHz ? I could not find this information on web.

Martin Sägmüller on December 1, 2010 7:17 PM

No, it doesn’t play 24/96.

Steve Witt on December 1, 2010 8:42 PM

So the Cowon’s brick Mac OS? That would account for the two S( I had to return to Amazon. Funny how that information isn’t more widely known. Would save on Amazon’s UPS bills.

The Clintidote on December 1, 2010 8:56 PM

Mr. Odd: “Is there a limit to the number of audio files it will see? I seem to recall other Cowon flash players having something like a 4000 track limit. 64gb will hold a lot more than that.”

MR, the specs are a maximum of 8,000 tracks *each* for internal/external memory, so 16,000 total for 64Gb maxed-out memory. I have about 11,400 tracks on my 64Gb J3 and it hasn’t skipped a beat. Everything still runs fast and smooth as silk. This is a GREAT player. For those interested in a J3, if you get one, buy a Ringke Rearth skin for it too – you’ll thank me later; incredibly well-designed just for the J3.

Finlandia on December 1, 2010 9:38 PM

Is there a setting that resembles, or is more exactly like the crossfeed in rockbox?

Martin Sägmüller on December 1, 2010 10:41 PM

Yes, Stereo Enhance and 3D Surround are like Rockbox’s stock crossfeed, only a bit clearer and less muddy (especially Stereo Enhance).

bleui on December 2, 2010 12:26 AM

in the meantime, Engadget gave X7 an 8 out of 10

Michael on December 2, 2010 2:42 AM

The best UI I’ve used is the ?uzzle one. Haven’t gone back to the stock one since.

Sappy404 on December 2, 2010 12:50 PM

Excellent review, but:

“Date first available at June 7, 2010″

… and that’s the 32gb version. The lower-capacity models have been around since April!

Sappy404 on December 2, 2010 1:08 PM

PS, I don’t mean to moan, and I’m not having a go – I realise a delayed review is better than no review at all, especially on this site when the reviews are so comprehensive – I’m just surprised it’s taken this long considering the following Cowon have ’round these parts.

Martin Sägmüller on December 2, 2010 4:51 PM

It’s indeed a bit late for the review, but if we just tried to be “first” with a review out, it wouldn’t be that in-depth, it would lack all the info one gathers from prolonged real-world usage.

Ashkan K on December 2, 2010 7:42 PM

Very good review! I had a good read! Now i just want to know if there is going to be the updated version of the X7(with HD,wifi,etc) or was that just a rumour? And a another thing, Martin, Do you think that it is a good buy if i can purchase a J3 32GB for 385-400$ or should i wait until it gets down in price? Or maybe purchase it from germany or somewhere else?

Jaigoda on December 2, 2010 10:16 PM

If Martin had written this review earlier, it would have been the same type of thing as all those other reviews that are basically just reading off the spec sheet and saying “it’s good.” I’ve read every review I could get my hands on for the J3, and none of them told me anything that a spec sheet and a few Youtube videos couldn’t tell me already. I for one am grateful that Martin put so much time into this review.

Lovesun on December 3, 2010 7:30 PM

i love abi! yay!
and cowon ^___^

SirDoubleYou on December 9, 2010 2:07 PM

Where is the missing replaygain thing in the conslist?!
Really, it can’t be that difficult to add REPLAYGAIN can it? Cowon is backward in development because of that imo. Even Apple got that right.

Martin Sägmüller on December 9, 2010 11:33 PM

iPods support Replaygain? I have no experience with iPods, but that is the first time I heard that. To the best of my knowledge, only Sansa players support Replaygain, besides Rockbox.

CFWhitman on December 10, 2010 9:19 PM

iPods do not support Replaygain. Rather they support a similar feature called Sound Check. Of course, Sound Check is an Apple proprietary feature that has to be set from iTunes and is generally unsupported outside of Apple software and hardware. Also, Sound Check lacks the album gain feature of Replaygain.

Sjoerd on December 12, 2010 1:23 PM

It seems almost a decade ago that I replaced my Technics discman for an iRiver ihp-100 (which later became the h100 series). It had everything I ever needed in an mp3 player (back then): small form factor, lots of space, excellent audio quality, USB MSC, a remote, build quality matched only by the iPod and a LiPo battery (and I’m sure I’m forgetting one or two things here…). I have used it to the bone and over the years I replaced the battery, remote and hard drive in my ihp-100 by using donor elements from second hand iRiver players. For some time I’ve had an Cowon X5 alongside to my ihp-100, but it didn’t match up (even though it had a 30GB HD, I just couldn’t tune the sound right).
The Cowon J3 finally lives up the ihp-100: detailed custom and quality sound settings that can result in excellent clarity combined with deep low bass, without mudding the sound with too much midd bass. Plus, it still has all the other good stuff I like: decent space (up to 64GB … although it should have been provided by the internal memory alone!), folder-view on the device, USB MSC, LiPo battery, pocket size, decent build quality, hold button, dedicated volume controls and dedicated skip controls (that all work with the screen off / on hold). Additionally, it has a very good touch screen and it’s very light weight. The 4 custom user-EQ sound options are also excellent. I can use it to listen to anything: Henryk Szeryng’s performance of the 3rd concerto of saint-saens, The Whitest Boy Alive, Amerie’s One Thing or Alessandro Viale’s recent song titled It Goes Deeper (or Duck Sauce’s Barbra Streisand for that matter). As this is a comment and not a review, I won’t go into detail.
The only thing I am not yet complete sure of is the sound stage. It feels not as wide as my ihp-100 and I am not a big fan of the 3D surround in BBE+ … but I’m nagging a bit here. As far as anything else goes: I don’t care about apps, video or whatever, so I can’t comment on that. I just want it to deliver goose bumps quality sound and plain folder browsing on the go. Paired with Grado’s SR60, all songs mentioned in FLAC or WAV.

Andre on December 23, 2010 6:07 AM

IM IN LOVE of this DAP cowon is a company that makes me fun with my music, and have bbe for local radios it a great thing. Just terrific hope i can have one someday. BTW GREAT review, we’ve been waiting for this

Darrell on December 27, 2010 1:55 AM

I really wish they had used a regular size SD card slot instead of micro SD. A 32 GB micro SD is about $82 at Amazon. You can get a 32 GB regular SD card for about $65 (Amazon again)

Sasuke on December 27, 2010 9:21 AM

shuold i wait till the Cowon D3 comes out or buy the cowon J3 now?!?

please help :(

natospec on January 1, 2011 6:41 AM

I got a J3 for christmas and the first thing i noticed was its weight, light as a feather. also that it had an inconveniant yet appreciated plastic scratchguard covering it for shipping, delightfully the touchscreen still worked through it so i cut every peice of it off except the peices covering the glass, so bassicly i got a free jerry rigged extra thick screen gaurd.

macilaci457 on January 4, 2011 12:33 PM

Wow… not bad but… i have so many memories with cowon players like the Iaudio 5 and G3…
Those were the REAL players. Real buttons, Realy small dimensions, Really good playback time.

macilaci457 on January 4, 2011 12:34 PM

Sweet Iaudio G3. I could even use it in my pocket without need to taking it out.

Sjoerd on January 6, 2011 11:31 AM

Edit to my post of December 12:
I just paired my J3 with Phonak’s Audeo PFE 112. These in-ears example the detail in sound that the J3 can produce! Still no fan of BBE+ surround though: it just make the sound feel hollow and ‘wrong’, whereas the Dolby Surround Sound that is availble on my laptop realtek soundcard does this job (producing a wide sound stage) just fine. Apart from that the soundcard is rubbish by the way, compared to the J3. I also just plugged a 32 GB micro SD card. It’s a class 2, because I could not find any proof that it would be compatible with a higher class card. It takes 35 seconds to boot now! So, I would not recommend to add a 32 GB class 2 card, but first make sure that you can plug in a faster card and if that will make any difference at all. And let me know!…..Cheers.

Sirheroguy on January 6, 2011 7:50 PM

First off, great review! Second, this looks like an amazing player. I’d have to say that it’s UI is alot like the typical Cowon with a new edge on it. The D3 might be the new cool thing and have a “nicer” looking UI and have more features in it, but at lest the J3 is solid and doesn’t get glitchy. I’d like to get my hands on one and test drive it myself though. Thank you for your heard work and detailed review. Can’t wait to see some reviews on the K1!

Tim on January 11, 2011 3:35 AM

I’m thinking of buying a J3 to replace my Toshiba Gigabeat s60, and this review has pretty much convinced me.

Living in Australia, where people look at you funny if you don’t have an ipod because it’s pretty much the only mp3 player sold here, it’s difficult to find alternatives. So this website is great!

I use MediaMonkey, awesome program by the way, to sync to my s60. How well does the J3 work with MM? I know it would certainly work, but use a lot of playlists. Would MM playlists work on the J3?


Eric Terrell on January 15, 2011 7:58 PM

When you add a microsd card, does the device appear as 1 or 2 drive letters in Windows?

How well does it work with MediaMonkey?

Martin Sägmüller on January 15, 2011 8:11 PM

It’s two drives, both in MSC and MTP mode.

Eric Terrell on January 15, 2011 8:28 PM

Thank you for telling me that the device appears as two drives when the microsd slot is populated.

I would have preferred that they appear as one drive letter. That would greatly simplify loading music from MediaMonkey.

clay on January 17, 2011 3:52 AM

If you have the beloved S9 you’re not going to splash out on something which is basically the same… I would only upgrade if it were significantly larger.

Chris on January 23, 2011 10:36 AM

Is the cowon j3 player compatible with the napster to go service?
Who has actually tested that?
Thanks for your answers!

Chris on January 28, 2011 5:46 AM

To answer my own question from January 2011:
The Cowon j3 is compatible with the napster to go service.
i bought the player and tested it by myself.
Change settings to mtp and everthing works fine for me.
btw, the player is working with an apple imac running napster with prallels.
Since someone wrote about problems with apple computer in the review above.
No problems here either.
Greetings from munich,


meUzik on January 28, 2011 11:31 PM

excuse me
Dose J3 support External Microphone??

Martin Sägmüller on January 29, 2011 12:07 AM

Yes, that’s what the voice recorder chapter is about.

meUzik on January 29, 2011 5:15 PM

Tank you
But I cant find anything about “external microphone”.It has mentioned to internal mic and Line-in.
Where can I get more information?
External Mic is very important to me.

Tanks again…

Martin Sägmüller on January 29, 2011 6:33 PM

You have to purchase the line-in cable: – then you can use a powered mic for recording. The J3 has no preamp built in, so an unpowered mic won’t work.

~frank on February 5, 2011 6:39 PM

Thank you for the thoughtful review. I have an aging D2 that’s still working well, but I wanted to find a more modern device with higher capacity. My birthday is coming up this month, and the J3 is just the ticket for a self-indulgent birthday present. Martin’s criteria for a PMP seem to parallel mine precisely.

tric on February 24, 2011 11:10 AM

I really wish it had an SD slot; they’re far more cost effective for memory. Otherwise I would have wanted a 64 gb version so I never need to worry about converting flac.

Sino on February 25, 2011 12:11 AM

I’ve owned this product for a while and I’m not complety happy with it, same reasons are: average battery life (even though the company itself claims the J3 is kind of marvel), bad file support (no .mov, not absolutly everything on .avi or .mpeg), bad support for other tasks (I had never been able to run some flash on it) and it’s expensive cost regarding his overall performance (even worst: my artwork has never work on it). I feel like the Cowon J3 is a semi development product and if you spare some money just get something much better, namely a tablet.

Joshi on March 16, 2011 1:42 AM


excellent review – made me buy one ;-)
thanks for your work!


DaddyC on May 11, 2011 1:54 AM

Lacking adequate podcast and adio book support in this day and age is odd – especially at this price. My D2+ has always been buggy as an audio player only and want money back. Exchanging for a J3 may not be so crash hot as I do like podcasts from time to time.

Jaytee on May 11, 2011 8:37 PM

No crossfade? I cannot believe more people aren’t demanding that most excellent feature… I cannot believe these “advanced,” expensive, players don’t have it. I guess it’s because so few people know what it is as most players never had it. But once you’ve had it, you can’t live without it anymore.

Crossfade plus far better dynamic playlist support would be what I want in a Cowon.

desertkhaat on May 26, 2011 2:18 AM

Interesting review- personally, I like covered sd card latches(less likelihood of card popping out). I had a D2 & absolutely loved it -in spite of some bugginess, it had AMAZING sound. I am thinking about getting the J3. One feature I’m curious to know if the J3 has: being able to speed up or slow down what one is listening to? I’m learning a foreign language and that is an unbelievably useful tool the D2 had! Fun to use on music, too! This feature was part of the equalizer section, if memory serves me well…

jcg on May 31, 2011 1:25 PM

I’m right with you the balance is A GREAT AUDIO FEATURE for people like you who lost 30% of high sensibility on the left ear (or right for sure)
Don’t understand why NO BALANCE on DAP
cowon is king

Prashant on June 13, 2011 5:02 AM


is there any future plan to update the firmware of J3 so as to make available “onscreen button for onboard speaker to swith on or off” while listening to Radio as well as Music…

Every time while listening to Radio, I’ve to goto “Settings – System – Speaker” & then select “ON” to listen through Onboard speaker…
– Prashant

brian! on June 22, 2011 4:25 AM

Terrific review! I gave my sister my Clip+ and my dog just ate my Sansa Fuze, so I was considering moving away from SanDisk. I’ll be purchasing one of these as soon as my next paycheck clears! Thank you for your hard work and effort.

Marcel on June 27, 2011 8:35 AM

Thanks for a great review. I’m looking to buy something with more storage than my old 8gb ipod, and having owned the G3, I liked the attention to detail in Cowon-players. I am still unsure, however. The mention of locking up on an Apple worries me a lot. Also, not being able to separate audiobooks (or lectures, in my case) from music in random play is a real disappointment and possible dealbreaker (yes, it’s that important to me). To its defense – the (multiple) bookmarks feature is a huge plus, and to prevent the mixing of music and lectures, I could put all lectures on a microSD card. Or could I? What happens to my bookmarks if I swap the MicroSD card with lectures for one with music? Most likely, they will disappear.
Not supporting MP4 is also incomprehensible, as well as not being able to record in MP3. That makes the device useless for recording – not that it would have been much of an option if the sound quality is only basic. What happened with that? The internal microphone on the G3 was unsurpassed, in my opinion, and perfect for recording lectures – in MP3!
Finally, while I don’t really need a videoplayer on my mp3 device,not being able to show HD quality movies is lame. It means the videos shot with my Samsung Wave can’t be played on the J3. Maybe I should try to find a music-only (cowon?) player that does cater to these needs, and still offers the best of the J3 otherwise. Any ideas?

Marcel on June 27, 2011 8:38 AM

p.s. in your experience, does reading from the MicroSD-card deplete the battery a lot faster? My ebookreader (Sony prs650) seems to do that, which makes the SD-slot fairly useless. What would the battery-life be like if you only played from the MicroSD card?

Skysurfer on July 5, 2011 7:12 AM

Does anybody knows how does the sound quality of the Archos 43 compares to Cowon J3′s? I’d like to know that because I’m on deciding which to buy. Any help is welcomed.

Sheepherd on August 5, 2011 6:48 PM

Will cowon soon release a successor for the J3?
Dont want to buy that supposedly awesome player just to see a new one being released a month later ^^

steve orton on August 12, 2011 9:41 PM

Love the J3 when hearing music…but….. when you connect it to a PC it starts charging immediately–there is no way to stop it charging..and all you might want to do is transfer files…but it turns everything off and you cannot do anything until it is finished charging…then—when you turn it on to transfer some files….it uses battery power…so it then starts charging again…
The weirdest and gay thing.
I have screamed at it so much–all I want to do is download a file to it..and it starts charging..
for god sake stop charging and let me transfer something.

Atari on October 29, 2011 4:47 AM

I find it odd that you praise the Cowon for deterring one from accidentally skipping a movie by causing the skip-to-next-movie function to only work when the movie is paused (which I agree is a good idea) yet you castigate the (in my opinion, equally) ingenious idea of the phone not resuming playback immediately upon start-up, but instead powering on in a paused state.

Peradventure, for a moment, that you forget that you had the audio on 30 when you last turned it off, and you were in the midst of a power metal epic.

The first thing that happens when you turn it on is you scramble for the “pause” button, or you jerk the ear-buds out of your ears.
Or, almost as annoying, you have not yet put your earphones on/earbuds in, and you miss several seconds of the song while you tend to the task.

the condor 91 on November 14, 2011 3:02 AM

Great review i got my j3 a couple days ago and love it. But i really want to put some movies on it. Ive done some research and found out that xvidforpsp works well but i use dvd shrink to put movies on my computer and there saved as vob format and xvidforpsp wont convert those.Does anyone have any suggestions as to how to do this. Any help would be greatly appreciated

ezzony on November 22, 2011 7:27 PM

I have to strongly disagree with 2 of the ‘pro’ points in this review. Firstly “Build Quality” ! I found this player to be the most expensive piece of plasticy gadgetry I every bought. I’d also add it looks much better in the pics here that it does in the hand. Secondly and more seriously and the reason I had to sell it on, is the ‘user interface’. Well , I don’t get into details but I’d give it 3 out of 10. Flash skins although look pretty don’t improve usability whatsoever.

Sound quality and tactile buttons are good though but volume button oddly positioned!

Martin Sägmüller on November 22, 2011 10:44 PM

What’s wrong with quality plastic? I’ve been using the J3 daily for over a year now, and it still looks good as new. That’s what I call good build quality. I’ve had blingy looking metal gear which wasn’t half as durable as the J3. Looks can be deceiving.

ezzony on November 24, 2011 12:33 AM

In response to the last comment and not being a plastics expert I would say it certainly has a ‘made in Hong Kong’ feel about it especially the tactile buttons. I’d also take this opportunity to say the responsiveness of the Gorilla Glass touch screen diminished over time and also the sound quality to me seems inferior to my newly acquired X5L which does not have BBE+ !

John bush on December 5, 2011 8:31 AM

Build quality is very good. Been using it for 6 months every day and still looks like new almost. And compared to my iphone that looks bad i think that my cowon will last longer !
Sq of the cowon is just fantastic. Love the eq.

The Dr on December 6, 2011 4:44 AM

The only problems I have found with the player are the chrome on the sides of mine has been worn away quite a bit just from being in my pocket (no scratches on the screen). Also the interface was initially confusing (I pressed the full list to favorites button quite a few times causing frustration.).

Jorgemeister on March 10, 2012 3:30 PM

I cant believe I read all that…

but yes what a wonderful player. and tiny, im settle for the J3 and my upgraditis is cured.

ps: I do think the “Annoying latch/cover for USB and SD slot” is very useful and would like my other DAPs to have it.

Martin Sägmüller on March 10, 2012 11:30 PM

How is it useful?

Bob Paganello on March 24, 2012 5:35 PM

Will cowon or anyone ever support .shn?


Martin Sägmüller on March 25, 2012 8:24 PM

Rockbox supports Shorten (without seeking) – but you would be much better off by simply converting those obsolete SHN files to FLAC. It’s a way more versatile and widely supported lossless codec.

obc on April 20, 2012 7:18 AM

it is a swell device outside the infuriating operating system which seems more often than not incapable of properly processing albums.

1 – artwork. forget about it. i’ve spent hours manually uploading album covers. half take, half dont’, which seem par for the course with the more serious concerns regarding the tracks themselves.

2 – it seems 70% or so of the albums i’ve uploaded don’t process properly. either the tracks are listed and set in alpha order (as opposed to track order), or for whatever reason the first track is bumped to close the album.

Other albums have half the tracks show up as “unknown album” or, worse, spread through multiple “albums” with incoherent album titles such as [ l^], [h]\], [3t\] in addition to the actual album title. Same album processes just fine on iTunes, Zune, Media Monkey, Spotify, and any other platform I’ve used to listen to music.

Frankly, as much as I despise apple, I’ve found myself listening to more music on the iPhone my office provided a couple months after i plunked down $$$ on the Cowon (and add’l memory card) than the device i plunked down my own cash on for the express purpose of providing a quality listening experience.

how good the music sounds, how long the battery last, and how well it’s made doesn’t matter if i cannot listen to what i want because the device is incapable of properly labeling anything, whether before import or after pissing away my time in a futile attempt to do so after i’ve moved it over.

Alana O’Callaghan on May 1, 2012 2:34 AM

Can the J3 connect to a standard ipod speaker dock (either directly on to the dock, or via an audio-out cable into the back of my ipod docking station?

Joseph on May 8, 2012 1:45 AM

When listening to the radio, can the station be changed whith the hardware buttons, or is it necissary to use the toutch-screen interface?

proedros on July 31, 2012 4:52 PM

Great piece of DAP

I have one since January 2011 and i can’t say how much enjoyment i have gained from it

Paired with a good set of IEMs (currently have RE-272 and EQ-5) and an Arrow 1G mini-amp , this is all I need , no more upgraditis symptoms here

F**k apple and it’s overpriced-overrated I-pod , this is way better people give it a chance

terrific review Martin , well done !

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