I had the Cronus Magnum 2 for about 8 months. I loved the way it looked and sounded but I did hate the hum every so often. I noticed that depending on how much juice was running through the same circuit the more hum it created. Some days it was dead silent other days not so. I called Rogue and basically they said this was within normal operations. I'm pretty sure if I had a dedicated circuit, the amp would have been dead quiet. My reason for selling wasn't the hum, I realized that tubes weren't for me so I upgraded to a SS amp.
Rogue Cronus Magnum (hum/noise)
Any other Cronus Magnum users care to share how noisy your amp is? I can definitely hear a bit of transformer hum/noise when close to the amp itself, and within about a foot or so I can hear hum/buzz through my speakers. I've lived with it as it's not really noticeable when music is playing, I'm just not sure if that's normal or not for this amp? I think I can say with certainty it's not a ground loop issue, and different tubes don't seem to effect it at all. The noise through the speakers stays constant and does not change with volume.
I've asked Rogue and they said it's normal for little noise, but I don't know how much is normal??
The phono section also hums (a lot more, amplifying with volume), especially when the volume hits about 12o'clock, but this isn't too big of a deal for me as I use a separate phono pre.
The phono section also hums (a lot more, amplifying with volume), especially when the volume hits about 12o'clock, but this isn't too big of a deal for me as I use a separate phono pre.