Hi all I have a Darkvoice 336 classic OTL headphone amp with a svetlana winged C 6h13c output tube and a sylvania 6sn7gt vt231 input tube.I am looking to upgrade these tubes, considering the tung sol 6sn7gt and the Telefunken 6080W ....any ideas please? Thanks
Darkvoice 336 classic la figaro tube upgrade
- Thread starter arvin999
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