And a reminder to folks new to this thread... These need a good preamp to make a pedal board amp. I have PCBs to do this and I suggest using the volume-only version. And, they can also have an XLR installed, presuming you are using a cab-sim ahead of this power amp.
My build guide for various versions of the power amp pedal:
https://drive.google.com/drive/folders/1iFa5Fe8ZB1ukfYn8xFxkUt--wFWA6nne?usp=drive_link
These pair really well with the AMT legend series II preamps. Three versions are worth trying out: E2; M2; O2. The E2 and M2 are great if you use a tube-screamer style pre boost with it to push the AMT clean channel and can push the drive channels into full metal jacket. The O2 is lower gain and is a very articulate, solid drive channel. My buddy uses a Sherriff (Bobby at PedalPCB) for metal tone into the clean channel of the AMT O2 and the O2 drive channel for hard rock (like AC DC). The cabsim out of the AMT goes to the power amp. If you want to build an AMT pedal, I have PCBs for that, too. We gig with these and guitar players are impressed... Sometimes shocked. If you build a Sherriff (Bobby), use 4558 or 4580 opamps, not TL072. Not a huge difference but it does sound better that way. Build with IC sockets and try it for yourself.
The combo pedal build we use to gig is in this thread:
https://forum.pedalpcb.com/threads/...absim-noise-gate-post-boost.21199/post-268081
It has an AMT as the center piece and includes a lead boost (spark) and noise gate (Muzzle) and preboost (many options) and either a second drive channel or a reverb. We've settled into the drive channel we like so we both have a spin FV-1 reverb in our gig pedals now. That's the heart of our pedal boards. A combo preamp pedal and the power amp pedal with XLR out to the PA.
PCBWay projects that support all this:
https://www.pcbway.com/project/member/shareproject/?bmbno=FA3E9302-C561-44
Feel free to order direct from them. I can sell some if you are in the US but it's cheaper to buy direct from PCBWay anywhere else.
As a note, I'm not in the business of selling PCBs but I'm willing to sell some things that are not available at PedalPCB, like the power amp, AMT and the alternate versions of PedalPCB things that I redesigned to squeeze into the combo pedal build. And, if Robert wants any of this to pursue on PedalPCB, he can have it for free. (This is my disclaimer for folks who are ready to pounce on me for redesigning some PedalPCB stuff.)