So, I currently have the DT990 600 Ohm and the Denon D7000. I'm running them through a Titanium HD to a JDS Labs O2 amp. I also plan on getting the HD650's if I can get lucky on a good price.
Do you think the above sound card and amp are good enough for now, or would you recommend upgrading? If so, I'm assuming the amp would be the first place to improve (rather than another DAC). And if that's the case, what would be a reasonably good amp to upgrade to? I was thinking along the lines of the Woo WA6SE, WA2 (which I understand may not be as good with the D7000 as the D7000 doesn't like tube amps - at least as I've read), or the Burson Soloist. A friend also recommended the Pan Am as a good DAC/Amp upgrade.
By biggest question regarding an external DAC is that, for gaming, I think that I'll lose 3D positioning, since most of the "higher end" external DACs don't have some sort of 3D DSP? I could be wrong with that, b/c I listened to an HD800 through a Benchmark DAC1 and WA2, and heard AMAZING 3D position (but that was with a sound file, and not with a game).
As stated in the titled, I'd prefer to buy quality once, rather than waste money/time upgrading. OTOH, I don't want to spend $10k and not be able to appreciate $9k of that... :P
Suggestions/recommendations would be appreciated.