Dracule1, I had Thiel's, Acoustic zen, JBL monitors and a few others in my main system for a good while. All were excellent. I decided to keep my MMG's as my mains for a good while because I could not give up those mids/highs. I tried a few different positions for the placement of the speakers AND my listening position. I found the spot where I had plenty of base for my taste. I listen to everything...classical, rock, metal, punk, progressive jazz...and all on vinyl mostly. I throw in a cd every once in a while. As for a secondary system...you cant go wrong with these guys. Period. IMHO of course. Cheers.