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Two Turntables and Hum Problems - Help Please

Hello.

I've got two vintage turntables and both are giving me fits with hum.

I have two separate audio systems. One turntable goes to my pre-amp and the other to my receiver. Each system has its own separate sub-woofer.

My pre-amp and my receiver are about 30 feet or so from the turntables. That's as close as I can get them. Obviously each ground wire is much shorter than 30 feet. What type of ground wire can (and should) I use to replace what I have now that is not working? Copper stranded? Copper solid wire? Silver-colored wire? Should the ground wire be coated in plastic or rubber or should it be raw?

I've seen some references to sub-woofers generating hum from turntables through ones' pre-amps or receivers. Any thoughts?

Thanks!
snazz123

Showing 1 response by hifihvn

hifihvn
943 posts
 
I've had signal degradation with 12 foot cables from the turntable. You may not realize it unless you could compare the shorter length first. Upper end treble loss, no air, and it was just plain boring sounding. If I didn't know how it sounded before the longer cables, I may have blamed a lot of other stuff first, and wasted money.

Running a 18 awg for the ground temporarily may help hum.

In the long run, move them closer, or get a phono stage as mentioned above.
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