Hey, I need some help deciding which amp to settle with. I have purchased the Ultra Desktop Amp and I am using this with the HD650's. My question is would I see any improvements by going with the Balanced Desktop Amp over the Ultra Desktop Amp with my 650's (I do realize that the electronics...

Hey, I have a quick question that I am unable to find an answer to. How much output power whether it be mW or W do the Headroom Desktop Amps put out at say 300ohm, 64ohm, and 25ohm headphones? I currently am powering HD650's with my Asus Xonar Essence STX card with 2 brown dog adapters with 2...