But yet at the same time, after rigorous comparison (involving other test subjects, not just me) the O2/ODAC just don't stack up to better sounding gear. Last night, we had an O2, Bryston BHA1, and Eddie Current S7 shootout, and I can say for certainty that the O2 that thoroughly trashed by the latter two amps. The O2 sounded flat, lacked low-level information extraction, and even sounded slightly muffled or veiled in comparison. And as for the "colored" tube amp, the EC S7; it actually sounded clearer, faster, more dynamic, more airy, and more capable of reproducing dynamic cues than the solid-state Bryston BHA1.