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In Reply to: RE: Best Quiet Pre-amp 6SN7 New Production Tubes ................ posted by Cut-Throat on September 06, 2020 at 11:43:02
Go with the BEST sounding new production tube you can find, then...
Call a 'reputable' new tube dealer and have them hand select the QUIETEST tubes of that brand from their stock.
The 6SN7 is a low gain tube and I would doubt any good tube would be so noisy as to be detectable even with horns.
Power amps add a bit of gain and it THEY are noisy, game over. :-(
Not my experience with my 115db Oris Horns.... I have had new production 6SN7 tubes that produced a Tube rush sound from the Get Go.
Currently running Sylvania 6SN7GTB Chrome Dome Tall and they are close to silent with either my 45 or 300B Amps.
Currently using a pair of NOS Tung Sol Black Glass Round Plate 6SN7's in my pre which replaced some NOS RCAs I did not care for the sound of (some love them).
All of my Sylvania 'Chrome Dome' 'Tall Boys' are likely not NOS but 'pulls' that check good so I'll stick with the TS Round Plates.
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