AC Pump
Air Pump
DC Solar Pump
Brushless Motor
Stepper Motor
Servo Motors
AC Synchronous Motor
Linear Actuator Motor
Audio Amplifier
Convertor Boards
Microcontroller
Motor Driver
Relay
Voltage Regulator
Charger & Power Supply
Battery Holder Case
Li-Po Battery
Lithium iron phosphate battery
Lithium-ion Battery
Solar Panel & Inverter
3D Printer Parts
Body Chassis
CNC Parts
Gears – Gearboxes
Hub – Motor – Wheel Coupler
Motor Holders
Plastic Box
Wheels – Shafts
Sensor & Wireless Module
D
Frequency adjustment range of 22Hz-210Hz, the frequency range is no voice, the so-called low pass only low frequency output, the need to add after the amplifier board can be used. Low frequency performance of the power amplifier and power amplifier to match the speaker, according to different occasions choose different power amplifier board and bass speakers (passive subwoofer).
1. part of the large rectifier capacitor and 2 2200uf/25V filtering to do by the United States NE5532 (s, Op, Op Amp IC disassemble) welding, easy replacement of OP, ascension can be fun, all are PHILPS CBB capacitor capacitance potentiometer, using high-quality Taiwan produce closed potentiometer.
2. according to the input / output interface A board and B board, convenient user DIY, please specify when buying A board or B board, such as the default does not specify the A board.
3. there are LED lights, real-time monitoring of power supply.
4. reasonable PCB line plus excellent selection of materials, the basic noise.
5. input voltage: AC double 12V to double 15V can be.
6. single / dual channel input, mono output.
7. PCB uses super hardness FR-4 glass fiber board, specification: 78x42mm, thickness: 1.6mm.
Potentiometer from left to right are: frequency control, volume control
Low frequency: 22Hz-210Hz,
Power supply voltage: AC double AC12-15V (5W or above) must use independent transformer or independent winding
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