Quote Originally Posted by TheHills44060 View Post
I currently own the C220 preamp but I had both the C2200 and C2300 in my own system for a while so I got to dabble quite a bit. First I tried Electo-Harmonix because they were a friend's leftovers. Oddly I didn't hear much of a difference at all which made me paranoid because I thought I must be missing something. It was my first tube swap so naturally i was bummed out.

Next I tried some Ruby's that came from from a guitar amp and my first impression was that they hissed a lot more than I liked. Good crunch but I couldn't get over the background noise. Not sure if that was due to the fact that they were burned hot in the amp but nevertheless I was turned off.

I borrowed some Svetlana's which I really liked but in the end I ended up with Gold Lions. I love a warm sound but these tubes gave me the best of both worlds and kept me from diving into the overly warm pool which I tend to do sometimes.

EDIT: I never did get a chance to try Tung-Sol's which I have heard some favor in the Mac preamps.
In my system the Gold Lion where leaning towards more of a lively presentation pared with NOS Telefunken than I cared for in my preamp. And Mullards/Telefunken where great until I put the NOS Valvo tubes in the amp. Those Valvos are great! I am now waiting a set of Tungsram NOS.

Raven...what tubes are in the McIntosh?