a tube amplifier repair technician

It is "28 Days Later" and the sound is truely scary.
The only problem is that "Bug" is still alive & kicking.

I have talked to Bob about my options & his recommendation are as follow:
- modding those build-in amps in my Quatros might not be the best/performance/economical idea.
- my new Granite Audio preamp could be a good candidate for mods but I need more time with it to be sure that it is the only option. Its build in phono section might also need a face lift. Or, I could mod the Ref 40 but that one is up for sell right now (to support my other moves). If it won't sell, I will keep it as my reference phono and work with Bob to bring the best out of it. Too bad I have not even tried it in my system. But who know....maybe I will.

So, you got it back and it seems that you like what you hear....great.
I am glad that you do since I was somewhat guilty of it too (among others).
But since everything is peachy...that is all that matters.

Now ............................let's hope you are "Bug" free.
( but " 28 Months Later" is right around the corrner......so, watch out .....at the end there is always that last little bug.)

Rodman99999, Bob actually advises against the playing pink/white noise on repeat. He says that the components will break in faster using standard turn on/off cycle methods....FWIW. I don't know, I used to use the constant pink/white noise method for breaking in cables, but Bob says the caps need to fully cycle...charge....discharge....we'll see.

Cheers,
John

PS: As for Mrjstark, I'm sorry, there is no hope for you. I can only hope that I can escape the elusive "Bug".....

You can run but you can not hide.
I will be watching you ........

John, I had my pre modded by pcx and had Chris put vcaps in and 7N OCC silver wire, both of which I pre-burned on my cable cooker. Even still it was a 100-150hrs for things to really settle down. It will just take sometime. Without pre-cooking I think the burn in time on the vcaps is closer to 400hrs and silver wire takes a while too. If you ever need something pre-burned let me know I am just in Allentown.

Mrjstark,
I'm a little late to respond, but anyway:
I'm an ex-Supratek (make it two) owner, and I agree with you on the treble.
But, I think, I know a secret how to fix it.
Supratek uses silver- plated copper wire, and I think that's the culprit. How do I know?
Recently I had a tube amp made by very well regarded and respected manufacturer, who shall remain nameless, that is using the same type silver-plated copper wire in the chassis.
You guessed it, it sounded exactly like Supratek in terms of exaggerated and kind of discontinued from the rest of the frequency range, treble.
I changed the signal wire to a pure OCC Cryoed copper- and
the glare is GONE. Much more organic presentation.
I'm willing to bet money, that changing signal wire in Supratek will cure that treble.
Forget about tube rolling, changing ICs, speaker cables, support system and room treatments- it is not going to work. Been there, done that.
BTW, Bob Backert done a few jobs for me as well.
Luckily I live 10 min away from him.
The nicest gentleman (his son Gary too) you can ever meet.