The 907 is a highperformance power amplifier for linelevel stereo audio signals. It accepts a balanced stereo audio signal on a terminal block connector and delivers 40 watts per channel into an 8 load. Key Features High Efficiency – Class D operation. Controls – Volume control knob & mute button. Gain Control DIP-Switch. Mute and On Indicator LEDs. Compact MultiTOOLS – Up to 4 units can be rack mounted side-by-side in a 1U rack space with the optional RK-1 universal rack adapter.