Play what sounds good to you.

This is a schematic to your amp. It looks to me the bias should work well enough, but to get max performance would require a electronics guy to bias the amp. Every 6L6 or EL34 is slightly different and the bias on your amp is only adjustable by changing out resistors. Flipping the switch puts fixed bias resisters in the circuit.

https://www.thetubestore.com/lib/thetubestore/schematics/Laney/Laney-GH100L-Schematic.pdf

The actual technical answer to your question is very complex, and very difficult to understand foe anyone. Go look at the data sheets on 6L6 tubes. Google EL34 data sheets and 6L6 data sheets. JJ Electronics has pretty good data sheets.

There are several types of 6L6 tubes and the only supplier I have found that knows what they are doing is Eurotubes. https://www.eurotubes.com/store/pc/home.asp

https://www.jj-electronic.com/en/6l6gc-7027-a

I build custom amps and have worked on Laney amps but not the model you have.

Personal Highly subjective answer...I generally like the sound of 6L6's
No one but you can say what you like!

Cheers,

Billy

Last edited by Planobilly; 10/02/20 02:47 AM.
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