I used an M-300 MKII, essentially a Classic 150 to drive the top end of my Infinity Betas with great results. Unfortunately, the amps are a little long in the tooth and could begin having reliability problems. After sending one of my M-300s back to ARC twice, I bought a VT100-II.
To amswer your question, the Classic 150s will be "draw you in lucious" sounding, where the VT-100II is a bit more dynamic and detailed. The VT-200 (which I own now) falls somewhere in between. I haven't had any problems with the VT-200, but every now and then I miss the lush triode sound of the C-150.
To amswer your question, the Classic 150s will be "draw you in lucious" sounding, where the VT-100II is a bit more dynamic and detailed. The VT-200 (which I own now) falls somewhere in between. I haven't had any problems with the VT-200, but every now and then I miss the lush triode sound of the C-150.