Mk 3 signature sounds very good with Jadis Defy 7 Mk 2.
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It seems every one is recommending you some kind of tube amp when you are looking for a solid state one. Unfortunately as fine as the CAT is, it's achilles heel is the slight grainyness in the treble & slightly forward midrange. These characteristics will exasperated when matched with most ss amplifiers today, especially with the likes of Classé, Krell, etc. The only ss amps that are truly musical are Lamm Industries ML 1.1 & 2.1. These amplifiers do not exhibit any of solid state nasties, in fact you will be so impressed by their tonal accuracy & full bodied sound that you will never miss tube designs.
CAT MK3 sounds wonderful with ATMA-SPHERE MA-2, though input sensitivity is on the high side. with this combo i realised listening to 60 tubes altogether...aaahhh the GLOW.. the WARMTH.. not tubey sound however, just the music maestro ! I refer to my CAT as "the tube tester", does this sound familiar to all you CAT owners ? ENJOY ..
I will repost and state that the CAT probably works well with any very high quality, neutral solid state amp. Besides the Plinius which I mentioned previously, I have a Pass Aleph 4 which I like very much, but always felt it was a little shy in the upper mids, even though it exceeds the Plinius in bass and treble extension,detail and soundstage width and depth. I recently went from Telefunken 6DJ8's (Ecc88's)in the CAT to Tele 6922's (E88CC's). What a difference in treble clarity, detail and extension! Bass extension and weight is also improved. It may actually be too much of a good thing. Soundstage is deeper. With one pair of tubes the dynamics are outrageous, but only when the music calls for it. The other pair has less dynamics than even the 6DJ8's but it brings along a refined sound that the 6DJ8's didn't have. I had long thought that I had found the limits of the capabilities of the CAT, but I now realize that I hadn't. And who knows if I have at this point? This is beginning to sound like a tube review so I am going to stop. I would say, like the previous poster that the CAT will give you anything and everything that your tubes and upstream components can muster. Every new tube that I have tried in the CAT has made an instantly recognizable change in the sound. Certainly, certain tubes sound better than others, but any component which reveals so easily the slightest changes is truly exceptional. It is the job of whatever amp you choose not to lose any of that bass or treble extension, detail, soundstage or harmonic structure. The Pass Aleph 4 does that and with the right tubes in the CAT to bring up that upper midrange "softness", I feel that I am now achieving sound of a very high calibre.
Mr. Rayhall, No wonder your CAT sounds better when putting in 6922's, if you have read your owners manual, it states that you may not put in de 6dj8 type, because the v6 v7 has been designed around the 6922. [it has to do with different voltage]. as i have been foolish to throw in all sorts of equivalents myself, i had costly repair for all sorts of fet's which blew up. now you may think it your way.. as i used to do, but i have this information from Ken Stevens himself, and my own six years of living with my CAT has learnt me to not mess around with tubes at v6 v7 !! btw, you will not notice a couple of fet's been blown,your CAT will still play music, but not like it was intended... I've warned you. take care enjoy your music.
Excuse me Superclamp, but the manual says no US 6DJ8's. Now the Telefunken is not a US made tube, is it? You might think that I misread the manual but the manual says ECC88's are ok. The ECC88 is the European equivalent of the 6DJ8. Therefore, I think European 6DJ8's, or more properly called ECC88's like the Telefunken are OK. I read it to mean that you could not use an RCA 6DJ8 or a Sylvania 6DJ8. However, I would be interested to know what you had in your CAT at what position when you blew the FET's.