Gabi,
I have a pair of Thiel CS5i which are more demanding than your CS6 (they used to be the top of the line beyond the CS7...remember?) I brought home and tested in my own system few amplifiers before taking any decision: McIntosh MC602(5),Goldmund Mimesis 28(4),Krell FPB300c(3),Mark Levinson 336(2),and finally a Pass Labs X350(1). I wrote my score between brackets for your information. The PassLabs really outperformed all the other amplifiers!
Good luck with your choice,
Gerry
I have a pair of Thiel CS5i which are more demanding than your CS6 (they used to be the top of the line beyond the CS7...remember?) I brought home and tested in my own system few amplifiers before taking any decision: McIntosh MC602(5),Goldmund Mimesis 28(4),Krell FPB300c(3),Mark Levinson 336(2),and finally a Pass Labs X350(1). I wrote my score between brackets for your information. The PassLabs really outperformed all the other amplifiers!
Good luck with your choice,
Gerry