IMO the bass on the 660 is pretty neutral, it's rather good actually, it sure does have definition..(on my Grace m902 dac/amp) so when the bass is on the recording it will be there and it wouldn't be shy..
I'm listening to Nonchalant, Untill the Day (bin years lol) and the bass is very tight
Edited by Quinto - 2/26/13 at 5:14am






















Not really sure if these are as portable as I hoped for. Out of the box, they sound better through my X-Can than through the M-Stage. I guess that's an impedance "mismatch".
Do you believe they need "burn in" at all?


I haven't been impressed by other lower end Beyer headphones, not even DT880 is in the same league as my k501 with k701 pads 


