Thanks again guys, learning a lot here. The last pair of Thiel I listened to was indeed the 3.6 in a dealer show room twenty some years ago. It sounded very good but now I can't remember what amp was used. At that era, I think it must had to be some high power amp like Audio Research, Krell, Mark Levinson, Conrad Johnson or maybe Aragon, Bryston, Spectral etc. Since then, I've not been following hi fi development. It seems like now we have a lot more new manufactures and a more focus on multi-channels and digital products. What would be a good pre/power amp (2-3k budget, used equipment ok) to match the 3.6 in a two channel set up mainly for LP and some cd listening of classical, jazz and vocal.