\rHi Chris:
Thank you for purchaing ICE610 in-ceiling speakers. We would recommend a combination of the AMP120 and ISS4 Speaker Selector. It sounds like you purchased Impedance matching slider style Volume Controls hopefully from us. They need to be impedance matching to make this work properly. You will need to run CL3 Rated speaker wire from the amplifier (Speaker Output A) to the Input on the ISS4 speaker selector. Then connect speaker wire from each zone output to the volume control input located in each room. We would recommend using our 4 conductor 16 gauge CL3 rated cable to handle this connection to the speaker selector then to the volume controls. From the volume controls you will need to run 2 conductor 16 gauge CL3 rated cable to each speaker (right and left in each zone). Each Volume controls has a impedance matching switch which needs to be set to 4X. Make sure the protection button on the ISS4 Speaker Selector is in the off position (disabled). The Volume Controls do all the protection the amplifier needs. Please feel free to contact us if you need further assitance.
TL\r