SA-CT123 - Cable Tester (3 Pack) (Test XLR, 2P/4P Speakon, TRS, TS, RCA, MIDI 3P/5P Cables)3 Pack of Pro Audio Cable Testers Model Number: SA CT123 (Cable Testers) The Seismic Audio cable tester will test continuity for the following cable types. 1 4" TS Mono 1 4" TRS Stereo 4 Pole Speakons 2 Pole Speakons 3 Pin XLR MIDI 3 Pin 5 Pin RCA This can also test cables that are made from a combination of different connectors. Such as: Speakon to 1 4", 1 4" to XLR, 1 4" to RCA, and so on. Comes with test leads that can be used to test cables that