Asking $400. Russound CA4 Multizone Controller Amplifier System Kit. Whole house audio.Amazon.com: Russound CA4 Multizone Controller Amplifier System/Kit: Electronics 4 source 4 zone whole house distribution kit. Never used, brand new in box. Taken out of box to inspect, that is it. Doesn't work with my current wiring, found out to late. Bought it earlier this year. $500 new from Amazon.