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.)
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.)
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