DC 12V-24V Low-pass Filter NE5532 Bass Tone Subwoofer Pre-Amplifier Preamp Board
Adjust the potentiometer selected Hermetically, inputs and outputs use pure copper terminals, wiring is very convenient.
Selected NE5532, welded IC holder can always replace the amplifier, experience different effects to enhance playability.
Design of the LED Real-time monitoring the power supply situation.
PCB board design simple and beautiful, reasonable wiring, making the board has a very high signal to noise ratio, strong anti-interference ability. when no signal input close to the speaker almost hear the noise.
Single power subwoofer pre-amp board, you can share a power with stage amplifier , DIY is very convenient.
Power supply voltage: DC12V-24V DC single power . Frequency range: 22Hz-300Hz. Audio input: mono or two-channel. Audio output: monaural. PCB Size: 78x32mm, thickness: 1.6mm. PCB Materials: FR-4 ultra-hard glass plate. Finished plate net weight: 30g. Plate mounting holes center to center spacing: 70x24mm, hole diameter: 3.2mm. Potentiometer shaft center to center spacing: 32.5mm.
Special reminder: This board is a single power bass subwoofer preamp, directly connected to the speaker will not sound, you must connect to a pure-grade amplifier board made active subwoofer to sound, pure-grade amplifier board power according to individual needs shock the degree of choice, the greater the power the more shocking bass. The so-called low-pass filter plate is to filter the human voice more than treble part, retain the low frequency part is amplified to improve the bass reproduction efforts will not hear the human voice and high-frequency sound when playing the instrument.