Note: This is a kit, all the components need yourself to solder.
works voltage: AC12V
constant input impedance 50K;
With memory fuction,
4 relays for 4 inputs, 7 relay for 128 volume, stepping 0.5dB, the total attenuation 63.5dB;
display PCB size: 100MM*32MM
Volume board size 100MM * 36MM,
signal switching board size 55MM * 36MM;
Volume board only relay and resistors, sound is pure, fresh;
Volume size is small. you can use more board to built a multi-channel volume or balance control.
aiwan coding switch, rotate left and right to adjust the volume, press choose input Audio, long press to Power ON/OFF
package included: HIFI remote volume kit x 1
Aluminum remote x 1(no battery)
connect wires
we can provide suitable transformer and chassis,if need ,pls contat us !
The following is assembeld board photo, just for reference only.