I use Black Treasure CV181s (6sn7 equivalent) and a NOS Philips 5AR4. Find this a very musical combination and the BTs an improvement over some NOS TungSol 6sn7s - sound stage, depth, bass, separation
Tube rolling in Modwright LS 100 preamp
I just swapped the stock tubes (JJ) for Sophia Electronics 6SN7's and a Genalex Gold Lion rectifier. I was quite surprised that I didn't really notice much of a difference. The preamp sounds wonderful, really, but the SE's have been touted as a nice improvement. Perhaps I just need to be patient for them to break in. Any comments? Thanks.
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