High-Precision Single Supply Low Pass Filter Board subwoofer preamp Board 2.1 Channel 10-24v 22hz-300hz

10-24V subwoofer preamp board front finished board subwoofer preamp board single power low pass filter board: Single Power Low Pass Filter Board, Subwoofer Front Board.Special reminder: This board is a heavy bass preamp board. It will not sound when directly connected to the speaker. It must be connected to a final stage power amplifier board to make an active subwoofer.The power of the final stage power amplifier board is shocked according to individual needs. The degree of selection, the higher the power of the final stage power amplifier, the more shocking the bass effect. The so-called low-pass filter board out the high-pitched parts above the human voice, and retains the low-frequency part to zoom in to improve the bass playback strength, and does not hear human voices and high-frequency instrument sounds during playback. Buyers must understand this knowledge to avoid using it and not knowing how to use it.Most of the subwoofers in the market are basically dual-powered. It is not very convenient for the majority of DIY enthusiasts to use. After all, the single power supply is easier to find. Under the premise of ensuring the effect, we have introduced a single-supply super bass. The board can be used to share a set of power supplies with the power amplifier board. The DIY is very convenient.The board features:1. All components are selected as the new first-class products. The frequency adjustment capacitors are made of the original CBB capacitors. The adjustment potentiometers are made of fully sealed type. The input and output terminals are made of copper terminals. The wiring is very convenient.2. The op amp is selected from NE5532. The IC seat can be soldered at any time to change the op amp, and the effect brought by different op amps can be improved.3, designed with LED indicators to monitor the power status in real time.4. The PCB design of the board is simple and beautif

• Special reminder: This board is a heavy bass preamp board.
• It will not sound when directly connected to the speaker.
• It must be connected to a final stage power amplifier board to make an active subwoofer.
• The power of the final stage power amplifier board is shocked according to individual needs.
• The degree of selection, the higher the power of the final stage power amplifier, the more shocking the bass effect.