Preamp Deal of the Century

Alma, as I said, I will no longer respond to mustang.

Isn't your question redundant? In addition to the post cited above, on 7/19/03 you posted this:

"but nobody...nobody has had one bad thing to say about Supratek or Mick."

What precisely are you seeking? Validation of your own position or one of a contrarian?

Perhaps you should contact the manufacturer. I can't think of a better place to begin don't you agree?

We should all be very nice to each other.

Today I´ve listened the Cab with the Mundorfs for the first time and I´m quite impressed, not subtle differences but very noticeable ones, bigger soundstage, mostly in the vertical plane, clearer sound and deeper and more tied bass. I guess that after a few hundred hours it will be even better.
Mick told me that in the Syrah the Auricaps are better then the Mundorfs, it looks that the big Mundorfs are better then the Auricaps but on the contrary the little Auricaps are better then the Mundorfs.
A new discovery for me in the 6SN7 field, the Sylvania GT from 1952, great tube, delicate but with lot of information and good bass.
In other prior post I asked if all the indirectly heated tubes have slow start?. Could anyone help, please?.

Lrsky:

Build quality seems excellent to me. The unit has a solid feel to it. That said, I'm sure if I dropped it, it wouldn't fair to well. My unit shipped packaged very rigidly in a large Fedex shipping box. You should have no concerns regarding the build quality of Suprateks.

jpms, some of the posts in this thread deter me from contributing, but I can help you with your questions:
1) U54 is another designation for GZ37 and CV378. It's not a GZ34, but it's listed as a suitable sub in Mick's owner's manual.
2) All indirectly heated rectifiers have "slow start." Not all indirectly heated rectifiers can be safely sub'ed in your Supratek though. Nothing personal, but I find a lot of the recommended tube substitutions in this thread way too liberal.