Quicksilver Preamps?

I got it from Upscale about six months ago

Quicksilver is not Mid Fi at all!!!! 
They play nice with most gear too. Preamps are so tough to “A” / “B”, it’s not like hooking up two sources and toggling back and forth.   Call Johnny at Audio Connection in NJ...

I WASNT ranting at you....  just the Mid Fi reference in general.     I understand...  Quicksilver is definitely underrated.   So good for the money.. .Im sitting here listening to my Mid Monos and asking myself "why am I buying a new Amp? 

I'm having a 300b amp built but will be keeping the QS for sure.   They will do duty in a second system.   If Mike built a low powered SET   I would have bought it.  He did actually,  several years ago and they are quite rare.

I just put Mullard NOS 6201 in my Sonic Frontiers and it was a big improvement over the JJ 12at7 I had in there.  Good thing about this tube variety is there are several new production that are good and finding quality 12at7 NOS is much easier and cheaper than 12ax7 or 6922.  Both of which are getting scarce and pricey

I have only bought NOS from Upscale Audio and Brent Jessee 

That 6201 I got was from Upscale and it cost a little more but triodes were perfectly matched and it makes this piece sound much better than a $500 used pre should.   Unit was quiet before but dead quiet now and big sound , great bass , mids and high freq are clear and very detailed.  It had a Brimar 4024 that was dark    Seller said it was nos but I seriously doubt it.  Anyway I had 3 diff tubes in there and the 6201 was easily the best