Furnace fan hum issue solved

Furnace fan hum issue solved

Postby Ayre Conditioned » Sat Dec 09, 2017 9:18 am

Noting how close my phono interconnects are to the power cord on my phono stage I decided to make a copper shield out of some Speltz speaker cable I used to use. Success!!! No more hum when the furnace fan comes on. The Signal Cable power cords must not be shielded. I checked their website but it doesn’t say. Not sure if I’ll leave it like this or search out a different cord.
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Re: Furnace fan hum issue solved

Postby WntrMute » Sat Dec 09, 2017 9:47 am

Not to criticize your particular phono stage but that seems a poor design as many are. My K&K requires the unshielded litz wire from the cartridge pass over a power inlet. I support them a couple of inches above the IEC to avoid inducing hum. When I built my DIY phono stage I ran the power inlet wires down the sides of the case while the phono wiring passed down the middle. Glad you solved your problem!

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Re: Furnace fan hum issue solved

Postby Ayre Conditioned » Wed Dec 13, 2017 6:42 pm

Update. I bought 2 Pangea AC-14 XL cords from Audio Advisor. No furnace fan hum. Sounds like the noise floor dropped a little and smoother sound overall. :D
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