My band is looking to join parts of a tour and we should really invest in a wireless IEM system. I know the basics, but the practical application of a system for all 5 people is a little over my head. It doesn't look like there are a lot of systems that are more than 2 receivers to one transmitter. Are there any 5 receiver systems out there? Just a way for the sound guy to dump a house mix into our IEMs? If I have to go with a few systems, is there a company out there that will build a portable rack with the transmitters in it? Thoughts? Advice?