The best 12AU7 is no 12AU7. Replace them with 12FQ7/6FQ7 (depending upon the filament voltage supplied to the socket) or with 6CG7 (which requires a minor re-wiring of the socket for the filament supply only and requires a 6.3V filament supply). Then you've got something.
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If you’re having trouble choosing between a tube or solid state phono amp, then what about the ASR Basis Exclusive? https://asraudio.de/files/Test-ToneAudio-USA-HighEnd-Phono-Vorstufe-November2007-EN.pdf |
- 60 posts total