I've had a Rega turntable in my system for the past twenty years- a Plannar 3, a P25 and currently a P7. I've used two different Rega cartridges-an Elys and a Super Elys, an Ortofon OM 30, a Linn K-9 and K18, two different Audio Technica OC-9mlii, and my current Denon DL-S1, and I have never had a problem with hum. As I said in my last post-other than Grado cartridges I've never heard of this "classic Rega" problem. I read somewhere that the issue with Grado cartridges has nothing to do with the way Rega grounds it's tonearms but has to do with the way Grado makes its cartridges-I don't recall where I read it buts it's out there somewhere. I really don't think a rewire will solve this problem-good luck in getting this straightened out.
Well, Thanks but I don't have the problem, its GR350 but if I'm not mistaken I think the higher end turntables have that extra ground wire. I've never read anything negative about an Incognito rewire upgrades and most online blogs rave about it and is a must to take the lower rega tonearm to a higher level. The incognito rewire does have that extra ground wire which makes me think, it can be part of it. Having built several D.I.Y phonostages and preamps. There are many different ways to ground equipment. All of them work fine. You can use a house ground, the semi-star etc. but guess which one yields the best sonics? The Absolute ground..
Rega P25|AM Tonearm|GT SubPlatter & White Delrin Platter| Denon 103D WB| Bob's Cinemag|Hagerman Cornet 2|Aikido Octal Linestage|Denon POA 1500|Tubelab SSE| Axiom M60ti