I have a Jolida 302b, a Jolida CD player and Tyler Ref. Monitors wired with Signal Cable. I am looking from a bit more treble, briteness, highs whatever you want to call it. A little more sparkle. Will tube rolling help with this? Suggestions please.
I cannot address your Jolida. However, in my Conrad Johnson MV-55, I have evolved my EL-34's from Svetlana to JJ to Electro Harmonix (EL34H) and finally have nice treble!
I would change the input tubes with mullards or others. They make a big difference to the stock tubes.
Or look into an ASL aq1001DT - it is a tube integrated that sounds like a tube and SS - which will brighten things up. At least it has solid highs for me.
After tube rolling with Mullard, JJ Tesla, Sovtek and the EH el34's. I found that the Electro Harmonix Big bottle 6CA7's were over all killer in my Jolida 302B amp. Excellent highs and awsome bass response very clean. The preamp tubes I am using the EH gold pins 12AX7/12AT7.
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