ARC Ref 75's as monoblocks?

In general, I am not a fan of bridging amplifiers. It's sort of like a parlor trick and, yes, sometimes the result is ok. But if you want a monoblock amplifier, I think the best thing to do is buy one rather than kludge a stereo amp.

@almarg Good info as always. I was planning to run another brand stereo tube amps in parallel but probably best buy mono version. Thanks!

Thanks so much for the input, I had no idea if it would work but now I see it's probably not a good idea. Appreciate it. Joe

If the speakers you are using are bi-wire or bi-ampable, perhaps using another arc ref 75 is feasible? Are there 2 sets of preamp outs on the pre-amp in service?

@wturkey has it right.  CHECK with ARC and then see if you can bi-amp your speakers, which would be the best solution for amps not specifically made to use as mono-blocks. I THINK ARC will agree, although you should work with them on the precise config. you have in mind.

Cheers!