The V12 has been my main amp since December 2023 now, and has done probably ~500 gigs. Everything from clubs to arenas to festival stages.
Here’s my best practises, after much experimenting:
1. Use a 4 ohm cab, unless you’re in a small club. The difference in openness and dynamic response compared to an 8 ohm cab is significant.
2. Run the master on full, and use the gain knob as your volume. Doing it this way makes much better use of the available power to the speakers, sounds much clearer, and this amp doesn’t send weird LFOs through the speakers (unlike the SVT 7 Pro)
3. Keep the compressor off, and make sure it’s fully dialled counter clockwise. Even if the LED is not flashing, it can still significantly reduce dynamic range in a way that works against you being able to hear yourself clearly.
4. The SGT circuit is just a distortion in front of the amp, essentially like have a distortion pedal. If it doesn’t work for you, there is no difference to the circuit to run a different SVT pedal (like a VT Bass, Origin Super Vintage, etc) in front. It’s in front of the compression, the -15dB pad, everything. I personally have had much better results using the HX stomp in front than the baked-in SVT setting of the SGT circuit.
TL;DR:
4 ohm cab
Master on full, use gain for volume
Make sure compressor is wound out
Use a different drive to the SGT circuit