The Ampeg Classic will be just about identical in practice to the sound of your PF50T (& from my exposure to BA210s, that one too) IME. Not necessarily a negative & it can be useful to have a second set of EQ & gain to stack, but will be the least transformative option I've tried in a preamp role.
The MXR 10 band has worked well for me as an EQ option (6 band doesn't seem laid out as optimally for me on the frequencies available) but requires 18V power. Gonna be trying the Boss EQ-200 sometime soon here, which on paper seems like the one I'd recommend based on features available, but I have no experience actually using it yet.
That's my couple bits anyway![]()
Thanks,
I’ll check out videos and specs on the mxr 10 band and the boss eq-200.
the mxr m81 is on the radar now too.
there are several good threads here on the matter, and I’m looking at those!
I now have a boss geb-7 on the way, (cheap bin, on eBay)

