The Role Of This System:
This product sets the volume control, audio input selection, amplifier power supply control, infrared remote control for a multi-function, mainly for power amplifier DIY or upgrade without remote control function of the amplifier to make it with infrared remote control function.
Retrofit and upgrade the power amplifier without remote control function to add functions such as multi-way audio input selection function and volume remote control.
DIY Power Amp installation into this system can realize multi-function audio source switching + volume control function, this system has automatic volume return to zero.
Use as an external volume controller. For example, some TVs or DAC decoder outputs cannot adjust the volume. Adding this system can easily solve the volume control problem.
Features:
1. Manual or remote control can be controlled
2. The audio signal circuit is completely isolated from the control circuit without interference
3. Dedicated MCU controller + motor driver
4. Wide voltage range of AC or DC power supply can be, the motherboard with a polarity automatic conversion circuit DC do not distinguish between positive and negative
5. Building block 4-channel switching module, whether it is assembly or maintenance is very convenient
6. Bistable power supply, high power and low power each with a regulator, work more stable and reliable
7. 2 kinds of functional modules are free to expand both
8. The main board has a motor potentiometer forward and reverse two-color indicator LED lights, and the working status is clear at a glance.
9. With 2 gears motor speed. Coarse adjustment: every time the button is turned 15 degrees, the volume will change greatly; fine adjustment: every time the button is turned 4 degrees, the volume will change less, which is suitable for fine adjustment.
Specifications:
Power supply requirements: AC 9V~12V or DC 12V~15V (no need to distinguish between positive and negative poles)
Audio equipment that can be connected: 4 sets (stereo RCA interface)
Power control board: can withstand the use of equipment within 500W. (optional)
Input impedance: 50K (20Hz~20KHz)
Frequency response: 20Hz~20KHz
Volume control method: manual + remote control
