Have a friend with a pre wired house with 10 rooms two channels per room speakers already installed and cables run to a central closet. He wants multizone for cheap. Was thinking about recomending two Dayton MA1240 and a pc with multiple sound cards running jriver. Failing that a Behringer a500 with an aton speaker selector. Are these a good way to go considering the budget. Anyone used the dayton amp before? Advice would be hugely appreciated. Thanks