Designed with ergonomics of the human hand in mind, AT-4000 Series Attenuators’ control knob comes in a size that provides comfortable grip and excellent control with every turn. Consisting of 8 steps attenuation, the series is built to provide precision volume control with a difference of 3dB in every step. The built-in overriding relay feature allows emergency paging which is indicated by the LED light when activated.

• Input Capacity: 12 Watt (Max)
• Attenuations: 8 steps (0 dB, -3 dB, -6 dB, -9 dB, -12 dB, -15 dB, -18 dB, OFF)
• Override Indicator: Red LED (4-wire connection only)
• Overriding Voltage: 24V DC, 11mA (4-wire connection only)