The ChannelPlus MDS-6A unit works perfectly and can be easily set up by the average homeowner. It only requires speaker wires and a CAT-5 wire running to each zone. It provides very good sound. Most importantly, programming it with MDS-2A keypads really is a breeze and the "cloning" feature makes updating the other keypads easy to do. Although I was very leery of whether it would be easy to program, it's worked perfectly for me by "learning" the IR signals from any of my stereo equipment's remotes. Another cool, undocumented feature is that the "All" IR output can be used as an IR repeater, in case you want to lock up all of your equipment (including your home theater system) inside a closet.
It helps if your contractor has installed ethernet connections for the CAT5 wiring running to each zone (male connector in each zone's outlet box and female connector in a wall plate next to the MDS-6A), because making all of the connections yourself can be time-consuming.
All in all, I couldn't be happier with the ChannelPlus MDS-6A unit.
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