Hey guys, i'm sure someone is out there with the knowledge and power i require. I have a small gym which requires a new sound system. i need roughly 4 speakers, 2 per zone. meaning 2 zones. these will play the same music all the time. zone one however will have a wireless headset mic attached to it. this zone also needs volume control with the headset or have the headset mute the volume of zone one when its used. the size of the gym is fairly small, super high roof and concrete walls. any ideas?