With the VTL 7.5 the chrome plated Mazda (or Philips) E82CC that are made in France sounds insanely good. Only issue is they're pretty rare and expensive.
Tubes for VTL 6.5Series II Preamp
My VTL preamp has about 400 hours of play on the tubes. So I’ve given it lots of time to break in. It is unbelievable how it performs, opens the soundstage, adds clarity and blends perfectly between my Brinkmann Nyquist DAC and Decware 6watt amp. Anybody have any suggestions on tube rolling? It uses 2 12au7s. Thanks,