4 input 1 output Audio Input Signal Selector Relay Board Stereo Signal Switching Amplifier Board RCA For Speakers

purchase guide:

Optional wiring: RCA seat or terminal wiringOptional switch: touch the on or knobRelay options: Huike Relay (yellow) or Fujitsu Relay (blue)

4 choose 1 function (or 1 choose 4):

Simultaneously input 4 stereo audio signals, which can be AUX, PHO, DVD, CD, etc...Through the control on, one of the audio signals can be selected as the output signal, and the status indicator of the is on .It can also be applied in the re direction, that is, 1 out of 4.

↓Type 1：

Relay type 4- audio source selection board (actually adjustable from 1-4 s)The main board and switch cable length is 30CMUsing 1.6mm thick double-sided tinned , stereo dual-.The power supply voltage is single AC12-15V.Switch board size 43.5mmx43.5mm, mounting hole 33.5x33.5mmMotherboard size 105mmx43.5mm, mounting hole distance 94x33.5mmThe relay is Huike relay with strong bility and reliability.

↓Type 2：

The main board and switch connection line is 30CM long, with a knobUsing 1.6mm thick double-sided tinned , stereo dual-.Power supply voltage single group AC12-15VRCA seat hole distance is 13MMSwitch board size 43.5mmx43.5mm, mounting hole 33.5x33.5mmMotherboard size 105mmx43.5mm, mounting hole distance 94x33.5mmThe relay used in the finished product is Huike relay, which has strong bility and reliability.

↓Type 3：

The opening size of the indicator light is 6MM, and the opening size of the switch is 15MM. There will be errors in manual measurement. If you want accurate size, it is best to buy a real object and measure it.Display mode: each with LED indicatorWorking voltage: AC 6-12V, DC 9V-15V. (Do not use two power supply methods at the same time)Control method: onNumber of switching s: 4 sNumber of s: stereo L/R 　 2 sBand switch cord length: 30CMElectronic switch cord length: 30CMSize: 9.7CM*5.6CM

↓Type 4：

Display mode: each with LED indicatorWorking voltage: AC 6-12V DC 9V-15V (two power supply methods cannot be used at the same time)Control method: onNumber of switching s: 4 sNumber of s: stereo L/R, 2 sBand switch cord length: 30CMElectronic switch cord length: 30CMSize: 9.5CM*5.6CM, hole distance: 8.9CM*5.0CM

↓Type 5：

The main board and switch cable length is 30CMUsing 1.6mm thick double-sided tinned , stereo dual-.The power supply voltage is single AC12-15V.Switch board size 43.5mm×43.5mm, mounting hole 33.5×33.5mmMotherboard size 105mm×43.5mm, mounting hole distance 94×33.5mmThe relay used in the finished product is Japan's Fujitsu relay, which has strong bility and reliability.

↓Type 6：

Cable length 30CMUsing 1.6mm thick double-sided tinned , stereo dual-.Power supply voltage single group AC12-15VSwitch board size 43.5mmx43.5mm, mounting hole 33.5x33.5mmMotherboard size 105mmx43.5mm, mounting hole distance 94x33.5mmThe relay used in the finished product is Japan's Fujitsu relay, which has strong bility and reliability.

↓Type 7：

Display mode: each with LED indicator(Please note that the indicator light has positive and negative poles, please pay attention to the distinction when installing)Working voltage: AC 6-12V, DC 9V-15V. (Do not use two power supply methods at the same time)Control method: onNumber of switching s: 4 sNumber of s: stereo L/R 　 2 sBand switch cord length: 40CMElectronic switch cord length: 30CMSize: 9.5CM*5.6CM

↓Type 8：

Display mode: each with LED indicatorWorking voltage: AC 6-12V, DC 9V-15VControl method: onNumber of switching s: 4 sNumber of s: stereo L/R, 2 sBand switch cord length: 30CMElectronic switch cord length: 30CMSize: 9.5CM*5.6CM