I think the NuForce DAC-100 sounds great with both the T1 and HD800. as it was designed for both high impedance phones. The details are extraordinary, I'm a classical pianist, but I listen to all genres. I also own the LCD-2, and it sounds great, but not as great with the DAC-100, it's also not the most comfortable headphone. It sounds better with the Schiit Lyr that I own, I've thought about getting a better amp, I'll think about it.