Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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More fun with magnets!

Posted by Ric (A) on April 25, 2021 at 07:15:17

I had been looking at a review of the Ground Control from CAD audio and was intrigued by it being a passive device--no power cord! Yet, from the review it (of course) removes veils, lowers the sound floor and works.
Since I use a few of the cheaper (if you can call it that) High Fidelity Cables products and have used DIY magnets on my PC's, speaker, and IC's to great affect (cable deniers can stop reading here) I wondered whether some DIY magnets would work, similar to the Ground Control device mentioned above, which means plugging the DIY into an unused input on my integrated (or other)amp.
So I assembled an rca male end and attached a 1/2"x 1.25" cylinder type N52 magnet, one to the hot (positive) and one to the neutral (negative)using some cheap speaker wire. The way I attached the wire to the magnets is by using some #6-32x3/8" machine screws with the wire pinned and clamped down with two nuts (attached to the screw) and then a third nut on the end of the screw that sticks to the magnet.
I also housed the magnet into a piece of 1/2" pvc to insulate it from anything metal, as it's best to keep the magnets away from a metal surface.
So, if you have a cheap rca cord lying around, you will need 4 magnets (but just two will work). Cut the ends off of one end, separate the positive and negative wires, then attach those wires to the 6-32 nuts and machine screw and attach THAT to the encased magnet.
It is important to orient the magnets so the polarities are going in the same direction.
I was kind of blown away by the results--for those that do not want to work with live AC or mess with any other signal path, try these and report back! (look at my past postings for more magnet info).
PS. I mentioned using speaker wire, but I think if you have a cheap rca cable lying around, it would work just as well.

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