Then there were 2


OK I have 3 amps on my short list but one is not available due to supply chain issues.They are ARC Ref75SE, Rogue Stereo 100, (and not available is Quicksilver Mono KT/120)
Question sin it is down to the Rogue and ARC are the comparable (or as they say a coin flip?) or is one considerably better than the other.
I like the fact that the ARC use KT150 and the bias is accessible on front panel.
jimbones
Audio Research in my opinion is unquestionable the superior choice. Incredible sound, build quality over decades. Exceptional valuable over time. Also, I had recommended Rogue to a friend a long tine ago, the amp blew up during the warranty period and the owner would not repair it. I will never get over the humiliation of that recommendation.
I've had ARC pre & power amps for years and have found them to be reliable and very musical.  I've also not experienced any service issues with them.  The Ref 75 is a fine piece of kit, but I'd look at going up a step to the Ref 80s.  There is a used one for sale here on Audiogon.  The audiobias is nice and the look is a bit more modern.  
ARC.

In addition to what everyone else has said, they’re service is great.

All the best.

JD
ARC

Why settle if you don't have to?

Hope you are auditioning Magnepan speakers IN YOUR ROOM before you make a final speaker decision with your ARC amp and, hopefully, matching ARC pre-amp.

Prepare to be amazed!

Cheers!