900 Series U-21S Line Input Module- Unbalanced- 220k Ohms

For unbalanced, line level equipment such as AM/FM tuners, tape decks, and CD players. Allows remote control of input signal using an external potentiometer. Also configurable as master remote volume control. Controls/Functions: Gain Control, Remote Volume; Performance Input: 220 k ub; Gain (Adjustable): -30 ~ 0 dB; Maximum Input: +18 dB; Physical Connector: Screw Terminal