2. amps-preamps
  3. 1323896496

Vacuum tube preamp?

I have read that tube preamps can add some "warmth" and perhaps "soften" the audio signal input to the power amp. This has been recommended for systems which seem a bit "bright" in the reproduction of the higher range. I have Thiel CS 2's driven by a Hafler 9180 power amp and a Rotel 971 preamp. I haven't noticed feeling fatigued listening over long periods nor do I hear grain in the highs. I also wonder about characteristics of a given recording as the culprit more than my equipment. Any thoughts? If I did replace my preamp with a tube model I would want one at $500 or less? Do they exist at this low price?
nordic587
9 responses Add your response
jdombrow
371 posts
 
The best thing would be to find someone local that will let you audition one in your system.
sufentanil's avatar
Ag insider logo xs@2x
sufentanil
782 posts
 
I agree with Jdombrow, you should try borrowing one and see if the sound works for you. The "warm tube sound" is a generalization. There are incredibly transparent tube preamps, and very warm,rich, syrupy ones. And everything in between.

If you don't have any complaints about the sound now, what is it that you're trying to improve on?

Some options in about your price range that I think are pretty good for the price include the Marsh P2000t and Audio Mirror T-61.

Michael
sibelius
256 posts
 
Agree with the above. Tube preamps (and amps) cover the gamut from transparent to extremely colored with all shades in between. Better to try out a few and figure out what sound you prefer. Otherwise you will just get a bunch of recommendations that might not fit what you are going for.
Post removed 
unsound
7,329 posts
 
IMHO, the Thiel CS 2's are best driven with a warm ss amp. With that said, as suitably compatible tube pre is a very good idea. With your budget I would consider a used conrad-johnson PV 10 BL. Which BTW would work very nicely with a used conrad-johnson MF series solid state amp and your Thiel CS 2's.
schubert
7,386 posts
 
A correctly modded PAS 3 sounds about as good as anything.
linaeum66
60 posts
 
dared sl-2000a can't be beat in that price range
lewinskih01
909 posts
 
Nordic,

I'm not familiar with your Rotel pre, but I had a Rotel RC1070 pre and while cheap, I wasn't hearing enough differences with other pres that would make me want to change, until I got a Lamm LL2. Certainly I can hear that difference, but the Lamm is like 10x the price of the Rotel. Point is don't assume more expensive will always sound better.
bradluke0
163 posts
 
Hi all ! I have had 2 pairs of the CS2's . They are the easiest of all Thiel speakers to drive , so dont limit your choices on the preamp side . A Belles a150 will drive the crap out of those and can be had for $400 - $500...this amp is nice and warm sounding . Dont know much about preamps ,I have used the placette passive and a cary slp-03 for years and both were are excellent. PS... also a nice 40 - 60 watt tube amp would be a good match too.
Log in to respond
More to discover
80x80
NAD M12 + M22
80x80
Simaudio Moon Evolution 740P
80x80
KR Audio P135 MC Pre Amplifier w/MC Phono