Hard to say, but my Genz Benz Shuttlemax 9.2 into my fEarful 15/6 is definitely delightful. Same with the Streamliner 900. My Mess D800+ sounds good with that cab but have not played it live yet. Cab also sounds sweet with a Quilter BB800. I have enjoyed some great tube amps that were back line, in particular Ampeg SVT II and Mesa 400+. At Victor Wooten’s Bass and Nature camp they had a really sweet TecAmp rig, with TecAmp cabinets, I can’t remember if it was a 410 and 115 or two 410s, but everyone else went for the Ampegs and Hartkes and such and I always got to use the TecAmp, which I really enjoyed. My old Eden Metro was no slouch, as long as I had an extension cabinet to add to it, it sounded really good on a Genz Benz UB212T cabinet. I did one gig with two extension cabinets, the GB UB212 and an Eden D112Xlt, running at 2 ohms. That was epic.