following this discussion for some time now i have the following comment to make: i own gm's and have experimented with various amplification tube as well as solid state. i am getting wonderful results with the asr emitter exclusive- gm combination. the highs are silky smooth, the imaging is terrific. for below 50hz reproduction i use a rel b3 subwoofer through the hi out of the asr emitter. this is the best combination i have found so far.