What would it take to balance a stereo power amp ?


I am in a band and own the P.A. system that we use . In the interest of eliminating hum and noise I have decided to run it balanced . The main FOH system is tri-amped with an electronic crossover going into three seperate stereo power amps. Two of them have balanced inputs but one of them does not . The "unbalanced" amp is an older model that has given me years of trusty service and I don't want to replace it if unnecessary to do so . What would it take to balance it ?
Obviously , it would have to be an inexpensive retrofit or it wouldn't be worth the cost or aggravation . Any help would be greatly appreciated .
dicehead

Showing 2 responses by twl

I agree completely with Bob Bundus. It's easy, cheap, and done all the time in pro-gear setups. They even have adapter plugs which have the balancing transformers built right into them, and have the XLR on one end and the RCA on the other.
Of course, I'm sure you realize that I wasn't inferring that adding the adapters would change the topology of the amp to balanced. The adapters are simply a way to allow him to use the cabling he wants.