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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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In Reply to: Opinions and advice needed on DIY cable geometry... posted by Tom on March 13, 2007 at 11:39:23:
Using two conductors for each leg creates additional opportunities for vibration and RF resonance mode problems, so I would go with a single conductor for each leg. IME, 14-gauge stranded silver-plated copper with Teflon insulation is excellent wire, but it does have a directional sonic characteristic.It is easy to DIY a cable that has self-cancellation of this characteristic.
With a single conductor for each leg, cut each conductor in the middle and reverse one half. Rejoin and insulate. Twist the two conductors together.
With two conductors for each leg, reverse one conductor in each leg with respect to direction taken from the reel. Twist all four together to minimize inductance, or twist each leg's conductors and keep the legs separate to minimize capacitance. The length of the run and the nature of your amps and speakers will indicate which is the preferred arrangement.
RF and acoustic resonances can be reduced by covering with carbon fiber sleeve, then over-wrapping with Teflon thread-seal tape. Use care to avoid shorts with loose carbon fibers, and use the best spades you can afford. Support the cables off the floor with stiff and non-resonant lifters.
Additional RF resonance control can be accomplished by adding R-C filters to the ends of the cables. Solder these onto the spades along with the conductor wires.
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Follow Ups
- Symmetric cable design - Al Sekela 03/13/0712:21:55 03/13/07 (4)
- 14g magnet wire - Norman Bates 18:34:21 03/20/07 (1)
- twist if you like - Norman Bates 20:37:51 03/20/07 (0)
- Re: Symmetric cable design - Kamigo 20:18:45 03/13/07 (0)
- Cool...thanks, Al... - Tom 14:18:57 03/13/07 (0)
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