Supratek tuning


To all supratek owners

My Chardonnay arrived a week ago. It's superb. Plus, I have the chance to turn it even better. From the gain switches to tube rollin' there's a lot of space for improvement. So tell me:

What kind of sonic result do you get by experimenting with the gain swithes at the upper and back sides of the preamp? Just less/more gain? In what positions (for both switches) do you get the best results?

It seems the best 6SN7 tubes for these preamps are Ken-Rad Black Glass VT-231 and Sylvania Metal Base 6SN7W. Which one of these has tighter bass? Which one has sweeter highs?

See you,
lisbon
lisbon

Showing 3 responses by jazzdude

Optimum gain setting will depend on your source and power amp and the quietness of your tubes. You shouldn't narrow your selection of 6SN7GT until you have taken opportunity to listen for yourself. By limiting yourself to only Ken-Rad Black Glass VT-231 and Sylvania Metal Base 6SN7W you have deprived yourself of many fine alternatives which may sound better to your ears.
In my system the gain control only alters the gain. You should play around with it in your own system.

I have several pair of the ken-rad vt-231 in black glass and clear glass. They have a full sound but they are not the sweetest 6SN7GT nor do they have the tightest bass. I have several pair of Syl 6SN7W black-base but not the metal-base. If they bare even the slightest resemblance then I doubt they will do the trick for you. All my 6SN7W's are lacking top-end extension.
In my system, Sylvania VT-231 or Sylvania 6SN7GT, 1950's, green-label, bottom-getter. The former is a little lean to some ears, the latter is slightly fuller. Both have excellent top-end extension w/sweetness and tight bass.