Conrad Johnson 17LS Stock Tubes


I am about to buy a CJ 17LS from a dealer as a "demo" model. The dealer told me HE threw out the stock tubes and replaced them with "something." He mentioned Phillips, but he couldn't recall. I am using the CJ with Theta Digital gear (transport, dac and SS amp). I would have been happier with the stock Stovtek tubes for a couple months and then started to experiment with rolling, but I guess I don't have a choice. Should I call CJ and ask for a new set? and then go from there? I think it would be nice to hear what the company intended the preamp to sound like so I can make informed decisions on what tubes to try next...right? Is it usual for a dealer to throw out the stock tubes before selling an item? Also, I was reading the Stereophile review and the reviewer states "The Premier's Sovtek tubes themselves are carefully burned-in and matched, and supplied with damping rings to reduce microphonics." What are damping rings and how do I know if he threw those out too? I am just guessing, but a "carefully matched pair" of Sovteks is better then a couple of this and a couple of that? Right? Does it matter if you mix an match with preamps?
busaganashi

Showing 1 response by truman

I'd just like to second Fatparrot's suggestion that you contact Andy Bowman at Vintage Tube Services. I have dealt with him before. He is very reputable and stands behind his products. I have also had excellent dealings with Kevin Deal of Upscale Audio and can similarily unconditionally recommend Kevin to you.
NOS will give you "the best" your preamp can offer. Call them to ask what tubes they would recommend for your equip. I am sure they will both be very helpful. Turner/Atlanta.