A number of QS units can be employed together to expand up to 32 zones with simultaneous playback of connected teams up to 20 zones Each individual. Also, the QS offers four zone pre outs that allow it for being combined with the Yamaha XDA-AMP5400RK, a companion multi-space amplifier, to https://4-zone-amplifier49371.getblogs.net/66932320/the-greatest-guide-to-4-zone-amplifier