The Russound A-K6L is an in-wall amplified keypad used with A-BUS hubs and controllers in a distributed audio system. It can be used with both single and multisource A-BUS controllers. The A-K6L provides source selection and control with white backlit push buttons, plus an IR window to receive remote control signals. The volume up/down buttons control the speakers in the room that are connected to the A-K6L. Typical installations place one A-K6L in each room of the A-BUS system. The Line Out connection on the A-K6L can be used to feed a separate powered subwoofer or to connect an external amplifier for more power to a larger listening area. When used with the A-C68, the A-K6L keypad supports the A-KSC keypad to add source control and numeric control capability.