Just received my V1's from SoundEarphones.
initial imprssion:
-- burn-in is real on these. The sound opened up a lot within the first hour of playing. No this is not some "mental burn-in", I didn't listen the whole hour, only checked the sond once-in-a-while, and I used my ER4P as reference to compare the sound each time. The change is very real and quite obvious.
-- detectable housing resonance, if I play certain percussion tracks. Pressing on the housing reduces the fuzzy-ness. Not the recording's problem, I don't hear the fuzzy-ness if I play the track on my electrostatic rig.
-- voice is a little "nasal". From the housing as well, maybe?
-- very good bass (much more powerful than the ER4p; texture quality about the same), very good highs (no obvious roll-off). These phones can ROCK!
-- not comfy to me. Doesn't lock into my ears, I can get a good seal but I have to hold pretty still to keep it that way.
-- don't like the cable. there are only three wires connecting from the plug to the Y, this definitly degrades the sound (you want seperate ground for each channel, all the way to the plug). Maybe the V2's detachable cable is a 4-wire design? that will be a big improvement.
Finally, I don't know why you guys all say the SM3 doesn't benefit from a good amp. The difference between my modded Sony D11 ( Vitamin-Q for signal coupling, OS-Con for output) and my little micro-power desktop amp is huge (iMod/Diymod as source), transparency and detail improves a lot when using the desktop set-up, the sound stage width, in particular, expends by 50% (soundstage width with D11 is cheekbone to cheekbone; with desktop amp is 1" passing each ear, about the same as full size over-the-ear phones), sound imaging is a lot more precise too;
( Sony D11 headphone-out in stock condition it is already better sounding than a iPod Video heaphone out, the mods then improve the SQ a couple of notches further. I have not heard the iPod classics headphone-out, but I doubt it is that much better than the iPod video's. So don't count on any DAP's headphone-out to sound better than this modded D11
)