I've been tasked by my HD to fix our audio setup for our band hall. The audio from our current setup doesn't reach the percussionist when the full bands are playing. I had planned to use an Alto Stealth II transmitter and moving our speakers to the back of the room. However, by the time our secretary went to order it, they are discontinued. Does anybody have an alternative for this system? The issue I'm running into is that many products are similar but are battery operated and that won't really work for us. I'm open to any ideas!