Why would you want an amp for Amperior considering the fact that they have low impedance (18ohm) and don't neeed an amp? The whole purpose of having Amperior is not needing an amp to drive them. HD25 had 70ohm impedance and didn't even need amping because of it's high sensitivity (120dB).
That's a really good question. Different amps give different results/colors. For example, I really like the sound of tubes, so a nice tube amp will give my Amperiors that flavor. But, I also really like the bass from solid state, so I've been using my Amperiors on my home system, and I hear more detail than when listening on my portable setup.
I realize I might seem a little crazy wanting to amp these, but I just love finding out how far I can improve the sound. It would be alot easier if I just left everything alone and enjoyed the headphones "as is", but I got bitten by that damn audiophile bug that won't let me stop trying to take things to a new level lol
Here's a couple of amps I've been considering....
Edited by LAmitchell - 2/6/13 at 2:34am