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safe1 2nd June 2010 12:29 AM

Buzz from cartridge
 
Dear all,

I have a buzz problem with my cartridge caused by my cd-player when
my cd-player is powered on.

The whole story and the steps taken to identify the affected part is here: http://www.diyaudio.com/forums/digit...-hum-buzz.html for anyone who has some time to read. (thanks to all guys replied there)

Long story short:

I have a Rega P3 (2000) TT with a Rega Super Elys cart on it.
Also have a Marantz CD6000 OSE cd-player.

When the cd-player is powered on and the amplifier selected source is the phono inputs i can hear annoying buzz coming from my speakers.

This only happens only if the cd-player is powered on and i have to mention
that no other device in my setup causes a similar effect to my TT cartridge.

Is there a way to solve this problem?

I checked the TT grounding thoroughly and even the headshell and the cartridge screws appear to be properly grounded through the TT ground wire.

Have to mention (if it plays* any role) that time ago i have replaced the
original Rega cabling (which grounds the TT through the Left- terminal of the
interconnect),
with some other continuous-run phono cable which has separate wire for the ground (L+ L- R+ R- and ground wire).

best regards.

Th3 uN1Qu3 3rd June 2010 09:38 PM

I don't think it's a grounding issue. More like RFI leaking from the CD player and disturbing the cartridge. Try moving the CD player away, does the noise go away or decrease? If so, better filtering in the CD player and shielding its insides (with the kind of aluminum they use for tuners) will help.


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