I'm in a preamp pickle: ARC Ref 1 VS CJ 17LS

From what I've read they are both good preamps. I've owned a couple of the Audio Research preamps but not the CJ.
The CJ will give you a warmer sound I believe.

I would go with the CJ. The ARC has the drier house sound that is part of the ARC legacy. The warmer sound of the CJ will complement your system nicely.

Hello Bill-

nice system you have there, Thiel speakers are my reference as well -models CS 2.4 or CS 2.7- I also like CJ electronics. Until I can demo an ART3, my CJ reference would be the ACT2 Series2 model.

Regarding ARC pre-amps, the last 2 years I have spent much time w/ the REF3, REF5 and REF5SE. While I have not auditioned the REF1 model, I can suggest the REF3.
I can very strongly suggest the REF5 SE, I know that it is more money, this is a long-term keeper and money well spent, IMO. Keep me posted, share your thoughts and Happy Listening!

Wow! You could hardly pick two more opposite end of the spectrum candidates to choose from. The yin or the yang, chocolate or vanilla?

ARC is very fast, articulate and transparent, but can sound thin, brittle and hard in the wrong system. CJ is very sweet, warm, and musical, but can sound slow and lifeless with the wrong gear. Looking at your list of equipment, I would go with the CJ, as it may help to tame the Thiel's.

Cheers,
John