The RMB-1506 is a 6-channel power amplifier that puts out 50W per channel in 8 ohms and 100W per channel in 4 ohms. Unit is a breeze to use. Just plug your respective RCA cable into the input that is driving the specific speaker. It can be used as a multizone amplifier or in a home theater 5.1 setup.
Cosmetically, the amp is in nice shape. Small knicks and some scuff marks on the faceplate but nothing major. Manual is available online and will be securely packed for safe shipping.