http://www.head-fi.org/forums/showthread.php?t=133765
That's probably about as good as a review as you're gonna get. There have been several modifications to my K340's since then to reduce the midrange colouration and get more extension in the treble, which has been successful for the most part. But given that my personal pair has way more mods & fine-tuning than any other in existence, I'd say the above review is an accurate representation of the typical modded K340. The soundstage is rather crippled by the Gilmore Lite clone, but otherwise, everything else stands.