Wow, props Mike. That thing looks fantasticMikeC wrote: βSat Jan 07, 2023 7:44 am I recently built me a "Trinity Custom Plexi 6V6" which is based on a Marshall Superlead - but at a manageable 18-odd watts cathode biased. I also installed Global Power Scaling to further tame it. I've played it in a band mix and it has plenty of volume.
Head Cab Front.jpg
NMAD SV20H
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Re: NMAD SV20H
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Re: NMAD SV20H
FuzzMonkey wrote: βSat Feb 11, 2023 8:44 am sawI'm glad you've got the amp sounding more like you wanted.goldtop0 wrote: βTue Feb 07, 2023 4:41 am Got Clarry to change the bright cap to 100pf and he changed the cathode resistor to 180R to ensure that KT66s can be used effectively(without any overheating and shortening their life).
The amp now sings rather than screeches when the High Treble channel is turned up.
Clarry described it as overkill with the 4.7nf resistor in the mix, so it had to go for a clearer and much less volatile response
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Re: NMAD SV20H
It will act more like a switch than a pot with a 4.7nf bright cap.goldtop0 wrote: βSat Feb 11, 2023 9:43 amFuzzMonkey wrote: βSat Feb 11, 2023 8:44 am sawI'm glad you've got the amp sounding more like you wanted.goldtop0 wrote: βTue Feb 07, 2023 4:41 am Got Clarry to change the bright cap to 100pf and he changed the cathode resistor to 180R to ensure that KT66s can be used effectively(without any overheating and shortening their life).
The amp now sings rather than screeches when the High Treble channel is turned up.
Clarry described it as overkill with the 4.7nf resistor in the mix, so it had to go for a clearer and much less volatile response
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Re: NMAD SV20H
Love a Gold with the right amp but wouldn't entertain using one to reduce top end bite. Hell you can shave with those guys at a decent volume.
Try a Ruby, more mids detail and less hi top end. I bought one for my Astoria a ways back and works nicely ( also pairs well with a Gold )..
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Re: NMAD SV20H
Dharmajester wrote: βSat Feb 11, 2023 11:44 amLove a Gold with the right amp but wouldn't entertain using one to reduce top end bite. Hell you can shave with those guys at a decent volume.
Try a Ruby, more mids detail and less hi top end. I bought one for my Astoria a ways back and works nicely ( also pairs well with a Gold )..
Appreciate your comment re 'top end bite', it was more to try to tame the then squealing amp prior to the resistor changes.
It does sound great in the SV112 cab, adds just a tad more headroom and takes a bit of the boxy sound away.
Am hunting a Ruby currently but don't want to buy new, prefer used when one pops up eventually, cheers.
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