I'm sorry to get in this so late, it's probably over but: I've owned the 3.6R's and now the 20.1. I can tell you: forget the 40 watt tube amp. You really need power. I went from ARC VT100 to ML336, it changed the world. Keep the tubes up front. I don't now have the Mye's on the 20.1s, but I did on the 3.6's. When I first installed the Myes I couldn't believe what a dramatic difference they made. I called all my friends. But, what struck me was not the bass tightening up but instead an incredible "shimmer" in the high end. It was stunning. But, after about one week I got used to it and it stopped impressing me as much. That's the problem with these tweaks, we get used to them and then we want more. As to the bass, what really helped that out was building new crossovers, from top to bottom. Total price was about: $1200. Now that's your answer. John
