It seems the best solution for TEAC is via Toslink or Digital Coax input. However, there is no such thing on Audio-DG ones. the only digital input is from USB. If input by analog, this one is not even a hi-fi product since from the spec, stereo sparation is only ~70db, and have background hmm...

I think it's terrible to have a new product of 6 month after purchase, then it is out of support on that. though i did not try their latest product. but I don't have confidence on that.

It seems the driver cost 100% CPU time, and no sound after a several minutes of music play. anyone have idea about it.

I don't think audio-dg DAC is good. The sound output is Ok. however, the driver is highly unstable and refuse to work.

Got an audio-dg nfb-16 with te8802, cannot made it working longer than 30 minutes in the system.   The driver is terrible, tried on Win7 x64 and Win8 x64.   ASIO only work for seconds, then system crash WSAPI push/event work for <10 min, then system crash. DS can work 30 minutes...

Got audio-dg 16, terrible drivers. Tried Windows7, Windows 8, all hit blue screen. very unstable driver.