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Ground Hum with Rega RP6, Exact and TT PSU.

Greetings.

Just purchased a Rega RP6, Exact, TTPSU and I am getting a HELL of a hum. I am using an Aragon 47K Phone pre amp. I unplugged the wall wart and the cable which goes from the table and it is still there. I seems to get worse when I turn it on and the tonearm gets close to the center of the arm spindle and it picks up a lot of motor noise. Just sold a 28 year old Linn Axis with a Signet Cartridge and never had this issue with just the normal hiss associated as you turn up the volume. It's not noticeable a lower volumes but it is there during quiet passages and it is extremely annoying. The table sounds way better but the noise is very intrusive and honestly I am disappointed after dropping almost $2000. Thanks in advance
pivetta

Showing 1 response by williewonka

williewonka
3,067 posts
 
Some carts are known for their  hum problem as they get closer to the motor as the album plays on Rega TT's

Grado is one cart I had to return for this very reason.

Brands of Cart's I've had that do not have a problem on the Rega...
Denon (my current pick)
Nagoka
Rega (of course - but not very good)
Goldring

You may get some reduction in hum if you place a grounded aluminum foil sheet/plate over the cavity that houses the motor - or better still place the foil tape used on HVAC duct work - inside the motor cavity and ground it.

It really is a shortcoming of the Rega TT's

I took the easy way out and replaced the cartridge

Regards - Steve
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