To me, if it's between 1.5x to 2x as good as the ODAC/O2, then I'd be happy. I'm pretty sure that I'd have been happy with the O2/ODAC as well. But I was worried about two things. The gain settings and the sound signature. It's technically a very flat and neutral sound, but some have described the ODAC/O2 as being slightly cold and clinical. Based on the reviews (and impressions) that I've read, I think that perhaps the m9xx is just a bit more musical. This DAC/AMP just seemed to have more technical know-how behind the design, having been scaled down from a much more expensive system. Granted, the system was scaled down by eliminating some of the features, but still retains the main features that made the m920 sound good. In the end I may never really find out if the ODAC/O2 would have worked for me or not. And maybe that's not such a bad thing.
DeathbyMusicextra bells and whistles. for some it may come down to budget. there are a lot of great features on this Grace unit.the most obvious is 2 headphone outs. i may jump on this one
dwane5Of all the features that the m9xx has to offer, why do you value the two headphones output so much? What is the purpose of having two headphone outputs?
Ormiai read that wrong, if connected to powered speakers in rear, the front right out can be used to toggle between speakers and headphones and mute the speakers when plugged in. Left you can hear both speakers and headphones.
Ormiathats not the only feature. most headphone amps do not have this. it makes A-B headphones easy and watching movies or listening to music with others an option.