I had both units and I can definitely say, noise or similar has nothing to do with stock or NOS Tubes. I spent a small fortune for those NOS tubes and ant that time it was ok. Later I had a different unit for comparison and beat it in a minute.
Today I think, Design, the brain counts. NOS tubes are probably the icing on the cake but in the end it is overrated.
Today I think, Design, the brain counts. NOS tubes are probably the icing on the cake but in the end it is overrated.