Adders60 Posted Wednesday at 21:29 Share Posted Wednesday at 21:29 Ordered a pair of matched JJ EL34 tubes and swopped out the Marshall stock EL34 ( will keep as spares ) Replaced V1 and V2 with JJ ECC83S Pleasing results as it sounds warmer, fuller and less harsh at high gain which the better JJ tubes seem to be helping A nice easy upgrade 2 Quote Link to comment Share on other sites More sharing options...
ezbass Posted Thursday at 08:25 Share Posted Thursday at 08:25 I did a complete revalve on a Fender Hot Rod once. There was a small difference (slightly warmer/less harsh), but it was changing out the Eminence speaker for a Jensen that really made a big difference for that amp. 1 Quote Link to comment Share on other sites More sharing options...