I've owned the 17 LS2 and the MV 60 SE. The 17LS2 is superb. However I grew tired of the 17 LS2 with the MV60SE. Not incisive enough, a little too syrupy. Never heard the AI Pre. While I sold both, I believe the 17LS2 is a better Pre than the MV60SE is as an amp.
