YL-1 Volume Control Box:
YL-1 Volume Control Box Function
Flush type, for two-wire system ceiling speaker to control the volume.
Full volume output.
Constant input voltage: 120V
Technical Parameter
Color: White (RAL 1013)
IP Class: IP 20
Weight: 0.1KG
Power Loss: ≤5W
Volume Control Grade: 0/1/2/3
Matched with YDC-AG/YDC-D ceiling speaker.
YL-1 Mounting size