3 pin XLR's are mono. 5 pin XLR's are special connectors usually used in stereo microphones, but usually split on the other end to two mono XLR's.
Yes, XLR is a balanced.
Between microphone and microphone preamplifier
To connect microphones to microphone preamplifiers
A microphone preamp's output may be XLR or 1/4". You will need a cable that will adapt that output to a 1/8" stereo plug for the line input of your computer.
Discounts for XLR cables can be found on Monoprice, Crutchfield, Musicians Friend, ShowMeCables, zZounds, Amazon, Mobile Beat, B&H Photo-Video-Audio, and All Express.
You use an adapter.
The Cables Unlimited Wireless Stereo Headphone has a range of 150 feet.
Radio Shack carries a "2 into 1" adapter just for this problem. The two stereo leads will have a male plug. The adapter will use two females to this side. The single imput lead from the adapter will be male and plug directly into the mono-imput on your device. That imput will be female.
To connect an RCA cable to an XLR cable, you must solder links one and three from the XLR together, and connect those two wires to the end of the RCA component, along with the second wire. It is very useful to use a diagram to make sure you connect the correct cables.
You solder ground to pin 1, hot/plus to pin 2, cold/minus to pin 3
Stereo system.
I recently fished out my old goodmans sound system/ stereo but none of the aux cables iv tried are working how do i figure out what cable to buy ?