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Question:

Should TRS or TS cables be used for the powered signal in a 2 channel PA?

This is a very small system, just a tape deck, cd player, mp3 input, and a phono pre. This is then run from the L and R outputs from the mixer into a 2 channel EQ, then to a power amp (2x250 @ 2ohm), and from there to 2 vintage kustom speakers.Should I be using TRs or TS cables for all of these connections?FYI the speakers are about 25ft from the power amp on the opposite side of the room

Answer:

very interesting question
TRS cables are used for two channels, either to patch stereo signals from one component to another, or for send and return in an effects loop. TS cables are used for single-channel patching, and would typically be used between a mixer and a power amplifier. Speaker cables are different from signal cables, even though they often use the same plugs. Speaker cables should be made of 18AWG or larger 2-conductor wire, whereas signal cables shoud be made of shielded (screened) wire. Be certain to use the correct type of cable for the type of signal being conveyed. You may want to get some local help for this. Someone near you should be able to assist.

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