NE5532 Low-Pass Board Filter preamp Board Subwoofer Cannon Pitch Board HI-FI Low-Pass Circuit Board

Description

Welded 8P op amp IC Block, easy to replace the op amp to enhance playability, CBB capacitance capacitors are original, high-quality sealed potentiometers potentiometer. There are LED lights, real-time monitoring the power supply situation. Input voltage: positive and negative dual power input AC 12v to 15v can be. It can be a single / dual channel input and mono output. PCB ultra hardness FR-4 fiberglass board, size: 78x42mm, thickness: 1.6mm. Frequency adjustment range 22Hz-210Hz, this frequency range is no human voice, so-called low-pass only the low-frequency output, to be added after stage amplifier power amplifier board can be used. The intensity of low-frequency performance and power amplifier board with speaker matching, please choose a different amplifier board and subwoofer (passive subwoofer) according to different occasions. Input voltage: positive and negative dual power AC 12v to 15v . It can be a single / dual channel input and mono output. PCB ultra hardness FR-4 fiberglass board, Specifications: 78 * 42 * 1.6mm (L * W * H). Frequency adjustment range 22Hz-210Hz. Quality electrolytic capacitors 2 2200uf / 25V rectifier to do. Low pass filter amplifier with dual op amp NE5532. Note: 1. This board is not a single power supply can not directly use 12V DC power supply or battery, to use positive and negative dual power dual 12V DC or AC power supply transformer to work. 2. This version can not be directly connected to speakers, power amplifier need to take before you can enlarge the driving subwoofer.