Preamp for Clayton Audio S40?


I am going to purchase a Clayton Audio S40 amplifier. I am not sure which preamps mate well with it. I would like to hear input from anyone that owns one of these amps. Thanks
david_cordner
In my current set up, I drive the S40 (up for sale soon) with a Sony T-AP9000es multichannel preamp. I am waiting for my M100 to return back from the factory then the s40 will be available.

One more thing. This amp surprised me when I took it out of the box to use for the first time. I can't believe how nice it is up and down the musical scale.
Newbee,

Yes, I'm quite sure that I know about input impedances & their loading effects on the prior stage.

What I was trying to say in my post was that despite Clayton amps having a reasonably high inp. impedance, it might not be high enough as tube preamps themselves have a high output impedance.
Of course, it might be the case that a tube pre will work just fine with the Clayton but I just wanted to make David aware of the *potential* interplay between the tube pre output imp. & Clayton inp. impedance.

BTW, did you read that 2nd article I pointed David to? The reviewer there also mentions this very same point! Do spend some time to read it.
Bombaywalla - I read the article. Personally, I thought the reviewer was over the top in recommending a SS pre amp just because of a potential, and slight, electrical mismatch might occur if the user wasn't mindful in selecting the pre-amp. IMHO the user should keep an open mind should he have an inclination to a tube pre-amp and not just blindly exclude one because of this reviewers comments.
Newbee,

>>IMHO the user should keep an open mind should he have an >>inclination to a tube pre-amp and not just blindly >>exclude one because of this reviewers comments.

Fully agree with your opinion! I'm of the same mind. However, when providing advice I've found it best to be conservative & maybe over-mindfull than the other way around. Hence my comments to David.
My overall opinion on pro reviewers is mixed for obvious reasons. However, many times I find that they do express a valid point & re. the Clayton they *just might* have a valid point. I don't have personal experience. I hope that some other Clayton users, who have compared the perf. using both SS & tube pre to see which is better, chime in here .
Would Clayton M100 work with Supratek Sarah (600ohm) ?
Did somebody try this combo ?