Tubes for a Conrad Johnson 17LS?

just a note of caution,be sure to use the shortest interconnect with this preamp as the output impedence is very high at 1000ohms,or the base will drop off quite a bit,also be sure your amp has at least an imput impedence of 20k,or you will be very unhappy.

mike,

I got a 17LS recently too. One important thing is that the stock Sovtek 6922 sucks big time. I borrowed my friend's 17LS2 stock tubes (Electro-Harmonix 6922) and they sounded so much better. Sovtek sounds too bright, harsh, and lifeless...

I eventually settled down with a quad of Amperex 6922 (White letter, USA) and I'm very pleased with them. Bass and treble performance are excellent and image is better than the EH.

My other components:
Amp: CJ11A
CDP: ARC CD1
Speakers: VA Beethoven + Sequerra T1 Tweeters

I would definetly recommend switching the stock tubes.
As Tvad posted earlier he let me borrow a set of Philips
miniwats and the difference they made was amazing.

The Philips were much quieter and had better bass
extension. The midrange was more defined and detailed.
The original Sovtek tubes sounded muddy and congested by
comparison. I would never go back to the stock tubes
on my 17LS.

Good luck
cmach

I really liked the Mullard CV2493 in my 17LS. But, I am only comparing it to the stock Sovtek 6922. In my area, availability of NOS tubes is somewhat limited. I found that the Mullard threw a much larger sound stage, particularly from front to back. I did not notice any difference side to side, but that may be room limitations. Also, compared to the Sovteks, the Mullard are a good bit airier.
Someone suggested this first - get really used to the sound of the Sovteks, to give yourself a reference point. Then, when you try different tubes, you can compare to the stock tubes.

I own a 17LS.

I need to replace the tubes. I don't have a lot of funds now for NOS tubes.

EH 6922 seems like a good choice for a stock tube with the CJ preamps.

I also have easy access to a local cryo-facility so may eventually try cryoing the EH 6922 to see what improvement is possible.

Question: There seem to be two types of EH 6922. Those with gold pins (a bit more expensive) and those with non-gold plated pins (not sure if these are steel or nickel-plated).

Are the gold-plated EH 6922 much better? If yes, what are recommended sources to get the gold-plated EH? I can get the regular EH 6922 locally (in Canada) from PartsConnexion or TheTubeStore.

Also for this application is it important to get matched/balanced tubes. Some vendors seem to offer this as a service, typically $5 upcharge. I called CJ and they sell matched/balanced EH 6922 tubes as well, $115 for a set of 4. Does anyone know if the CJ replacement tubes are gold-plated?

Thanks for your input.