I switched the coaxial input back and forth between the Gamma and the TADAC DAC and tried to keep the volume consistent. I also tried using a passive pre-amp from CI Audio for switching, but . . .
On Puttin' it Down by Terry Evans, the soundstage fills the entire wall of my room with the TADAC and the Gamma just couldn't compete. As there is no line out on the TADAC, I don't think I will be able to do a level field comparision.
I spent additional time listening with my floor standing speakers over the past week. I continued to use a CIAudio VPC-1 for passive switching. Either additional burn-in was required or more likely it was related to tweaking the speaker positioning. Either the way the soundstage is more than adequate now with the Gamma1. Tonal accuracy and low level detail remain better in the Gamma1.