ricevs,
I read the 10audio review of the Mivera amp, a stereo stock IceEdge 1200 AS2. Pretty bad--rolled off HF with all the deadly consequences for detail, spatiality, etc. I'm sure the 1200 AS1 stock used for each channel would be better, but how much? Since you believe there is nothing special about Legacy IV2, is it just a stock 1200 AS1 with fancy casework, etc.? How do you explain the great reviews of the similar IV4 ultra, both from hometheaterhifi and our friend zephyr24069?