For my computer audio I've been using a Creative X-FI Titanium Edition, Berrydynamic DT990's 350ohmz, and a Fios E11 Portable Amp. I'm getting annoyed changing out the batteries to the portable AMP so often, so I would like to switch to a dedicated desktop amp. Additionally, I figure a better amp will drive the headphones better, and make them sound better as well. My price range is 150-200 dollars maximum.
I used my headphones for gaming only and nothing else, so I prioritize anything that makes the ambiance better. Louder, sharper, crisper, boomer sound effects are what I desire if possible. Can anyone make some recommendations for a dedicated amp to best drive my headphones for the desired type of sound I seek? The who recommended me my current set-up suggested this amplifier: http://www.jdslabs.com/item.php?fetchitem=o2full. It mentions that any talk about it is banned on head-fi, so I don't want to start any arguments, but I thought I would throw it out there, that I am considering getting that one.
1. Will I actually hear any difference when switching amps? Does the E11 already drive the DT990's to their maximum potential? Even if that's true switching to something that doesn't require batteries would be worth it in my mind.
2. Since I already have a X-Fi Titanium should I avoid any amplifier that has it's own DAC? Will that interfere with the DAC built into the sound card? I want to be able to continue to use the 3D positional audio that the creative sound card provides.