Quote: My K240's are the following: http://www.amazon.com/gp/product/B0001ARCFA/ref=oh_details_o00_s00_i00 55 ohm, K240 Studio, bought directly from Amazon (so they're not knockoffs), I have the version made in China.   Now, I initially tested them un-amped where they were not loud at...

The V6's are very easy to drive, you don't even need a dedicated amp. What would you say is missing?

Quote:   I have tried the AKG's with the Audioengine D1 and the FiiO E6 (as well as non-amped, but that was pretty bad).   And yeah, I'm having a hard time deciding...

I see, I'm also considering some Sennheiser options now, the HD 598 would be ideal if they didn't have such a horrendous color scheme, the HD 558 looks like a significant step down from the 598 though, and the 600 & 650 are more than I am looking to spend right now. Thoughts?

I currently have the SR80i plugged into an Audioengine D1 DAC/Amp at my home computer which is a pretty good combo. I was wondering if it would be worth it to upgrade higher up in the Grado product line or if it will be "more of the same".   I'm also considering the AKG Q701 or K702, however...

It might be time to include the V-Moda M80's in here. Also, it'd be nice to have a recommended amp in several price ranges and for a given tier of headphones.