2. analog
  3. 1139506417

60 cycle hum

I'm running a Rega P5 with outboard PSU into a Yamaha receiver with an internal phono stage. I hear no extraneous noise with the needle off the record 'til the volume control hits 12:00 - it then increases as the volume increases.

Playing records, the Exact cartridge has such a high output that I routinely listen between 9:00 and 10:00 and get plenty of volume...

Is the hum a problem or am I looking for an excuse to buy an add on phono stage?

BTW I seem to recall the same "problem" with an old HK receiver and a Denon TT with a Grado cart........but I thought it was Grado hum and when I swapped the cartridge for an Ortofon it was still there, but only at very high, not listening, volumes.

any comments would be appreciated.
joe_in_seattle
chazzbo
1,006 posts
 
Aceto has good idea and make sure that cables areb b not too close to each other or power supplies.Think PS Audioo make a device called humbuster but not sure how it would work with yout dry up.
Chazz
vinyladct
7 posts
 
High output cartrdiges like the Exact are going to have some "noise" associated with them when you crank the volume on your amp up.

I'm a bit perplexed by the responses from Aceto and Readster. Your analog input is never going to be as quiet as, say, your CD input. It's not a problem though unless it's above the noise floor of your cartridge when playing.
joe_in_seattle OP
114 posts
 
Additional information: hum present in both channels (speakers). Becomes louder as tonearm approaches the spindle. Hum disappears when phono leads disconnected from receiver. Doesn't seem to vary when leads moved away from/toward power cords behind receiver.
jameswei
795 posts
 
Are you using a VPI Power Line Conditioner to fine tune your speed? The old PLC would cause hum if placed too close to circuitry. Moving it away a few feet would solve this.
birdman99
8 posts
 
the cartridge is picking up noise from the motor in the turntable probably. grado doesn't sheild cartridge says turntable should be, don,t know about your exact cartridge.
Bill
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