N
Nigel
Active member
The mids are special. My set was stock and may have been past their service life. JJ 30 watt glass has no flub so long as they’re biased hot. Biasing an E34L like an EL34 is way too cold.Hmm, not the case at all with the Rivera TBR 1SL I had....came stock with Rivera labelled Siemens 34s and they sounded killer at all volumes, no flub at all....I attribute a flubby EL34 to the JJ EL34L all day. THAT tube is flubby with any amp I've tried them in(with one exception, a Wizard MC), and pulled shortly after. Siemens 34s are my fav 34, over vintage Mullard and even Winged Cs which are my 2nd fave. The mids in the Siemens are special.