Cowboy, I'm doing something similar, but slightly different. I have a Behringer Ultra-Q T1951 on the way. 2 channel, 4-band parametric eq, with tubes. (Will go in between the 950 and my ss power amp only for the front L & R channels.) No "bypass," but has a knob to dial in the "warmth" or "tubeness" of the sound, vs "cold". Somehow "mixes" in the tube sound. So "warm" for 2 channel audio, and "cold" for HT. Should be interesting to play around with it.