AmpliVox's 50 watt multimedia stereo amplifier with built-in wireless receiver has A and B channels which allow two presenters to use 2 wireless mics from the SAME amp when they use an optional external receiver. For more flexibility in presentations up to 4 mics can be used simultaneously: 2 wireless, one dynamic and one condenser with phantom power. Cordless portable 50-watt multimedia stereo amplifier with 3 mic inputs, line in with separate volume & tone controls; line out.
The SW805A works with most microphones including condenser, dynamic, and wireless. The condenser (electret) input includes phantom power. All 3 mic inputs can be used simultaneously. Tape record your mixed multimedia presentation as it is happening. Or provide a mixed output to the room's built-in sound system that you control.