Re: Replacing the "Power" Cable on a Wall Wart - Duster - Cable Asylum

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Re: Replacing the "Power" Cable on a Wall Wart

In Reply to: Replacing the "Power" Cable on a Wall Wart posted by GGA on March 9, 2005 at 11:32:57:

For duty in my bedroom system, I use a Nakamichi EC-200 Mobile Electronic Crossover (active x-over) designed for auto sound installations to filter my stereo subwoofer amplifier's and main amplifier's line-level inputs (Spectron mobile amplifiers... classic). The EC-200 has very little current draw (similar to your application) and to power it I first used a Sony unregulated wall wart intended for an answering machine. It sounded OK, then I tried a similar but regulated wall wart which sounded better but, not great. Then I obtained a Yaesu FP-4 power supply and the crossover's performance was/is greatly improved (Yaesu is a popular brand for ham radio types). It's a 4 amp max power supply but (when fused with a properly selected low value fuse) it's fine for feeding a low current DC device. The power supply's 5-way binding posts allow a choice of DC power umbilical wire, and I have found a 16 AWG mil-spec Teflon insulated silver plated copper twisted pair to sound quite nice (with a ferrite noise blocker clamped at the load end). The Yaesu FP-4 power supply has a DIY power cord installed and is then plugged into a Powervar isolation transformer (with it's own DIY power cord). I believe the FP-4 has an internal adjustment for increasing/decreasing it's output voltage (like many other power supplies of this type).

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Follow Ups Full Thread

Topic - Replacing the "Power" Cable on a Wall Wart - GGA 11:32:57 03/09/05 (8)

Thanks Everybody. Someone needs to make an... - GGA 16:38:48 03/09/05 (0)

Re: Replacing the "Power" Cable on a Wall Wart - Duster 12:46:16 03/09/05 (3)

How Did You Connect to the Crossover? - GGA 14:07:35 03/09/05 (2)

Re: How Did You Connect to the Crossover? - Duster 15:34:03 03/09/05 (0)

Replacing the wallwart. - Al Sekela 15:32:01 03/09/05 (0)

Strictly about the technicalities ...... - clifff 12:21:18 03/09/05 (2)

Re: Strictly about the technicalities ...... - Dawnrazor 14:02:07 03/09/05 (1)

Sorry, no. - clifff 01:03:44 03/10/05 (0)

Follow Ups

Re: Replacing the "Power" Cable on a Wall Wart - Duster 12:46:16 03/09/05 (3)

How Did You Connect to the Crossover? - GGA 14:07:35 03/09/05 (2)

Re: How Did You Connect to the Crossover? - Duster 15:34:03 03/09/05 (0)

Replacing the wallwart. - Al Sekela 15:32:01 03/09/05 (0)

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