Evidence Audio

EVIDENCE AUDIO SiS Solderless Plug Right Angle


Evidence Audio introduces the perfect 1/4" Phone plug for use with its award-winning Monorail signal cable.

As used by David Gilmour, Guy Pratt, Steven Rothery, and many others.

The very pure solid IGL copper conductor of the Monorail cable is softer than brass. The SIS plug is made from brass which is a bit harder than copper. (Most good plugs are made from a brass alloy as copper would be too soft for use as a plug).

The inside of the tip of the SIS plug is carefully machined to have "threads" of a precise size and pitch. These threads cut and re-shape the soft conductor of the Monorail when turn around it several times.

When you push the prepared cable into the SIS plug, the soft copper will find the hole. When you turn the plug 1 or 2 times the harder brass core of the plug will catch and cut into the copper conductor.

When you feel this happen you put the cap in place and screw the SIS plug into the cap.
General Tips & Troubleshooting:

1) REMOVE the thin black (conductive) skin from around the white insulation. If it touches where the conductor needs to enter, you’ll create a complete short or partial short with weak signal

2) Attach the first plug to your longer supply of cable before cutting to length. Measure length required to the other plug. Cut, attach the second plug to complete cable. Attach next plug to long supply of cable. Rinse. Repeat.

3) You need the cable to slide in completely with a snug fit. If you have trouble pushing the cable into the plug, don’t twist the shield as much.

4) Wear rubber gloves to get a good grip when closing tight. I can close 10 quickly without complaining. So can most guitar players. More than that you might want those gloves.