Want to upgrade my Adcom GFP 565 preamplifier

Thanks for you responses. I have looked at the 750 and am sure it is better than the 565. I do have concerns about a lot of negative reviews. In particular, the comments that it is clinical, life less and lacks smoothness in the upper end. This is probably a bit of snobbery but who knows. I am intrigued by the claim of increased soundstage and sweetness of tubed gear but tubes scare me. I don't want the expense of regular tube replacement or to worry that they need replaced.

I have not heard any Linn products, but have heard good things about many of their products. I will see if there are any reviews.

I was thinking of Classe CP-50 or 60 which have both received great reviews. However, being solid state, I am not sure they would be that much better than the Adcom 750.

Okay, I further reseached the GFA 750 including a review using my speakers and it is in serious contention if I can find one. The one on Audiogon appears to be sold.

"Revisiting an old Friend - the Adcom GFP 750
by Robert H. Levi"

I still would like to hear any comments on the Classe products or others in that league.

Thank you all for all the comments. You have given me some things to think about for sure.