Rogue Owners Unite

It's probably a ground loop hum. I had something like that on the same amp (as well as many others) and a cheater plug (3 prong into 2 adapter on the AC cord) solved the issue. Try the amp first, then the preamp and so on.

Good luck.

Thanks, Joeinid. I tried that and it didn't fix the hum. I think it is the just the amp. I can't hear the hum from my listening position. I've read that tube amps commonly do make some sound through the speakers.

Reviewer, Kal Rubinson has done much tube-rolling on Rogue gear. His writings can be found over on Audio Asylum.
Happy Listening!

Hello new on this forum but have been a rogue owner and audiogon member for ten years or so. After a bad tube and reading some Super Magnum info I've taken my M120 and 99 into rogue for some repair and updating. The 99 is going from magnum to Super mag, but not sure about the M120 they can get repaired but if I'm going to update now would be the time. So question would be who's compared the 120 to 150 and or the 180. and what are your thoughts on the differences . The ONLY compliant have had with any of the Rogue gear is how hard the M120s are on tubes I've had some very pricey tubes go bad prematurely and while it could be 100% on the tubes quality control. I have to wonder if the amps would be a bit easier on them could I still have those great sounding Tesla (KR-KT88) (now known as EAT).

Genelex Gold Lion KT-77's to replace the stock Svetlana EL-34's in my Cronus (non-Magnum Version.) Wonderful improvement.