Hey Elmgroove,
Most live sound mixers (like the Yamaha) will have balanced line inputs, the green ones. They usually have the advantage of a gain knob (notice it is lacking on the red channel). Lack of a gain knon need not be a big problem as you can control the input to the mixer with your mixer’s or controller’s master volume. Often they will also have a more limited tone control (EQ). This is also no problem, since you’ll use the EQ on your mixer/controller.
Even though, like Terry said, if you use short leads you should not have any problems with rca connectors, I would always opt for balanced cables if possible. Mechanically they are usually more sturdy too (both connector and cable).
If you need to hook up to a club mixer you might not have much choice, more often than not it will just be RCA’s on the line/aux inputs.
It DOES pay to get a really decent pair of sturdy RCA cables and not use a set you have laying around from your home stereo set.
Good luck & greetinx,
C.
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