The parts of this I understand, cheers!
The rest I'll come back to after some deeper reflection, and intense deciphering
Interesting story on that Hiwatt. Well, if techs poking around in amps is your idea of a good time. Picked it up recently (used, but it's a 2023 build) and it sounded kinda shitty - turns out it had a wiring error direct from Hiwatt:
Sounds really great!