Russound CAA66L 6 Zone Multiroom Controller Amplifier with Keypads Multiroom Controller-Amp Kit - 6 Zone 40W Zones - 6 Decora KPL Keypads, 1 Src1, 6 Wht/Alm Decora Inserts Each Zone Has Its Own Built-In Stereo Amplifier Providing 20 Watts RMS Per Channel. Up To Six Caa66 Controllers Can Be Linked Together To Accommodate A Total Of 6 Zones.