These are called "speed-wire" devices.

Tweakers' Asylum

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

In Reply to: Re: Oyaide SWO Outlet Question posted by Fullrun on April 26, 2007 at 01:14:18:

They are used to save labor.
The contact is made through a spring-loaded knife-edge, and is not suitable for serious audio systems.
Anyone who does not have dedicated lines should look at the outlets on the circuit from which the audio system is supplied. If the circuit is daisy-chain wired using these devices, the wiring should be improved by adding pigtails to the outlets, and connecting the incoming and outgoing wires with wire nuts in each outlet junction box.
Hospital-grade outlets have back-wire holes, but these are for clamps similar to the Oyaide, and are not for speed-wire connections.

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Follow Ups Full Thread

Topic - Oyaide SWO Outlet Question - Fullrun 15:31:21 04/25/07 (3)

Re: Oyaide SWO Outlet Question - kenster 00:15:56 04/26/07 (2)

Re: Oyaide SWO Outlet Question - Fullrun 01:14:18 04/26/07 (1)

These are called "speed-wire" devices. - Al Sekela 10:26:29 04/26/07 (0)

Follow Ups

These are called "speed-wire" devices. - Al Sekela 10:26:29 04/26/07 (0)

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