For this amp I think largely it is the preamp tubes.
In V1 I used and old Sylvania 12ax7
In V2 I used a square getter Chinese 12ax7
And in the phase inverter a Sovtek LPS 12ax7
I did put some old Philips 7581a in the power section. I'm sure this helped some.
Had this amp for quite a while. Liked it but it was a bit dry and stiff.
Had it prepped for storage for a few months but never actually moved it.
Been experimenting with different tubes lately and thought I should set this up before putting it away.
Glad I did! Sound perfect now and the...
Based on a Marshall VS8100 and an Ampeg VH140C.
Give them a spin in the partner section of the app. Love both amps but the 8100 capture is surprising.
https://www.tone.net/tonex/collections/live.ready.sound/solid.state.metal
Pretty sure it is his Supa Boost pedal built into the head.
Adds additional drive and tone control.
https://store.metropoulos.net/collections/pedals/products/copy-of-supa-boost-handwired-high-voltage-boost-pedal?variant=19776952860745
I rolled a ton of power tube in my KSR Ares. They all sound different in the room but when using a single SM57 they are more similar recorded. The Ares is very sensitive to tube changes.