Digizoid – or, digiZoid, as they write it – is a relatively young company from Arizona that specializes in sound enhancing techniques. Their patent-pending technology called Smartvector promises to improve several aspects of an audio signal originating from any source – be it from a portable MP3 player, be it in a recording studio used during mixing/mastering, be it while watching a movie on a home cinema setup, be it in a live DJ setup.
Since Digizoid are very secretive about their technology, it is easier to say what Smartvector is not: it is not a run-off-the-mill bass booster, it is not an EQ, it is not some psychoacoustic algorithm, it is not digital. Smartvector operates in the analog domain; it recovers the signal’s dynamic range, expands the spatiality (soundstage), and extends the low-frequency cutoff of a speaker/driver, making it deliver lower note extension than generally possible. I don’t know how they do it, but it doesn’t affect the THD (total harmonic distortion) of the signal, so they certainly don’t go the cheap route of harmonics enhancers/exciters.
Digizoid’s first commercial product utilizing Smartvector technology is the ZO, a portable amp, or “personal subwoofer”, as they call it. The ZO uses only a portion of Smartvector, named Lofreq. Unlike a still-theoretical Fullspec variant, affecting the whole audible frequency range, the ZO only operates on frequencies up to about 1 kHz.
Being a fan of natural sound reproduction – contrary to ‘neutral’ – I have to say that the ZO is the best thing I’ve heard so far in portable sound enhancements. Until now Cowon’s BBE and Mach3Bass have been the cream of the crop to my ears, as far as putting some excitement in ‘polite’ phones is concerned. The ZO however is the new king of crisp, precise, yet bassy sound, if you ask me.
Don’t be put off by the “personal subwoofer” slogan. The ZO is not some cheap boombox replacement for trunk rattlers. It is a very refined sounding tool to make audio more enjoyable – without damaging any part of it. Read on if it’s the thing for you.