Good looking amp, Iain. And good reviews too.
i saw Anna, who plays bass guitar in our musical company, use a Mark amp that looked like that at a gig she had with her all-girl band some months ago. They have an equipment rental company they work with regularly who brings all the amps, mics, and drums they need, even lights. Her band just shows up with their guitars and everything is set up for them. I had not heard of a Mark bass until our discussions here and was quite surprised to see one on stage when she played.
It sounded good, and that was at a large party in a large venue. I'm not sure if they DI'd it to the PA system.
Andy