Model 10761 (MPR‑SG6Z). The keypads connect to the main unit using Cat5e or Cat6 Ethernet cable. Each amplifier can be individually bridged to produce 100 watts into an 8‑ohm load. The six inputs are 2‑channel stereo, with four line level inputs using RCA jacks, one input on a 3.5mm TRS jack, and a Toslink® digital optical input.
eBay