Lyra Lydian Beta, Rega hum?

Jfreck is correct that the Regas ground through the RCA connectors, but I do recall somewhere that this sometimes is not adequate. Perhaps certain pre's and/or phono pre's need additional grounding as Jfreck suggests.

Perhaps you can locate another table (non-Rega)to borrow and see if the problem persists?

Jim

Saw your post and read a few of the responses so if you've heard this suggestion already- apologies. Hum is often a problem with MC cartridges due to RF interferences. Living in San Francisco for example, if you can see the hugh radio transmitter on twin peaks from where you live, chances are moving coil cartridge will have audible hum. This went away completely switching to MM cartridge

Thank you mmrevolver. I can see a radio tower on a hilltop from my window. It is about 3 miles away. Could be the problem.

Can't help wondering if the hum is due to an open coil in the cartridge. Is the hum so loud that you can't listen to music and does it begin the second you engage the phono circuit? If so, it may be an open coil problem. This happens from time to time with less expensive cartridges as quality control is usually less then with the ultra expensive cartridges. I had this problem with a blue point special and grounded everything in sight(boy, the dog sure hated that wire around his neck) until I gave up and had the cartridge tested, found defective and replaced with end of problem. Sounds like it's time to take the cartrige back to the dealer or if no dealer, Immedia and let them check it out.

Yes Franks, The hum is too loud to listen to and it starts as soon as take phono preamp off mute. Guess I need to get it checked out.