Hum X for CJ PV-10?

Did you ever find out from C-J (or just trying the Hum X) if it degrades the sound at all?

I'm in the same boat with my CT-5.

Sleepysurf,

The hum is most likely coming from one of the components you have connected to the CT-5 and not the preamp itself. Something you can try is to disconnect everything connected to the preamp (not the amp, naturally). Then connect each component one at a time until you get the hum. Put the cheater plug on the offending component. If you're against using cheater plugs on source components, then you'll have to look elsewhere for a solution.

Good luck.

Do you have an odd or even number of grounds?

Joe, I know another A/V component is the culprit, but it's not easy to pinpoint, as I have audio, video, and computer gear all interconnected, and difficult access to most of the non-audio cables. The "cheater plug" on my preamp eliminates the hum, so, for the time being, it would be easiest to just "upgrade" to the Hum X, as long as it doesn't "choke" the power output to my preamp. I've ordered a Hum X, and will see if it degrades system performance in any way.

If you have the original power cord on the CJ, you need to start there as it has no ground wire. When I replaced mine, 20 years of copper corrosion was pretty nasty and it was basically lamp cord quality. Not hard for a DIY IEC plug update if you have the right power tools and protect the transformer. Or an electronics repair shop should be able to do.