Grado/Rega Hum


Unfortunately, I have two analog components that are both notorious for hum.
I have the Grado Reference Sonata cartridge and an extensively modified Rega RP3 turntable.
 Now that I’ve got a subwoofer component in my system, I  hear the hum even at low volume, but only when I get close to the speakers.  Otherwise, I don’t know it’s there.
Is it compromising the final sound?  If so, is there anything I can do about it?
I just added some isolator feet to the turntable and it seems to be doing some good.
( I should probably forget about it, as the sound is wonderful anyway.)
128x128rvpiano

Showing 3 responses by rvpiano

Now you tell me! LOL
 I’ve gone and bought a whole new cartridge costing four figures.
No hum!

Sleepwalker,

 I have an external power source to the turntable (PSU).  The Rega has a non-detachable power cord.  Also, my preamp has a built-in phono component (Conrad-Johnson PV-11.)