Originally Posted by Popcorn
I don't notice any volume difference between these headphones: Creative EP630s, Sennheiser PX200's, ATH-CK7's, and a pair of Griffin earbuds (unk if they have a model number). I have the equalizer set to 'normal', and am using MSC mode.
Well, the EP630's and ATH-CK7's have almost identical impedance and sensitivity, so there should be no noticeable difference in loudness. The Senns are more efficient but have a higher impedance, plus they are supra-aural rather than in-ear, so pretty hard to compare. On paper the Senns should play about 6db louder for the same volume setting, but I think the design difference would swamp that.