Shahrose
Headphoneus Supremus
@Alydon: Let me know what you think of 3xLME49720. I personally enjoyed that combination a LOT with my DT990s, even moreso than with the HD650s. It served to tame the treble a bit, bring out the mids and remove the midbass hump on the DT990s (giving it a very linear deep bass).
One thing that I failed to mentioned earlier about the LME49720s is the amount of effortlessness it exudes, especially at higher volumes. Most other opamps can sound congested and smeared when listening to high volumes and the soundstage can collapse as well. This is absolutely not the case with the LME49720s. In fact, it's surprising how well it can convey a sense of space/air and accuracy at high volumes. The only weakness I feel is the bass (but I am being picky) which I feel is sometimes lacking (for my tastes) and it is not as sharp/defined as the default setup, however, the difference here is more in quantity than quality.
When switching to the DT990s though, an inherently bassy/warm headphone, the LME's sound excellent. I have not found the DT990s to sound better out of anything else.
One thing that I failed to mentioned earlier about the LME49720s is the amount of effortlessness it exudes, especially at higher volumes. Most other opamps can sound congested and smeared when listening to high volumes and the soundstage can collapse as well. This is absolutely not the case with the LME49720s. In fact, it's surprising how well it can convey a sense of space/air and accuracy at high volumes. The only weakness I feel is the bass (but I am being picky) which I feel is sometimes lacking (for my tastes) and it is not as sharp/defined as the default setup, however, the difference here is more in quantity than quality.
When switching to the DT990s though, an inherently bassy/warm headphone, the LME's sound excellent. I have not found the DT990s to sound better out of anything else.