subwoofer low pass filter board price (new version)

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• Compact Size pcb - Just 80 x 45 mm.
• +12v DC single supply operable 
• HF filter at Signal Input
• Gain Control - 10 dB
• Frequency Adjust to give best Bass Performance.
• 2.54 mm JST / Relimate Connectors. 

• Bass Boost  -   up 24 dB symmetrical curve Boost .  
• High signal GAIN -  10dB signal GAIN to Drive Power Amplifiers.
• Universal amplifier usability - can be used with any amplifier made of IC or transistors.
• Supply Support -  +12  volt DC  single supply required, 
• Polarity Protection -  Diode at power input to Protect against wrong power input.
• Standard Components -  All components used are available online or at your local electronics store.  
• No SMD components - Only through hole components used, making soldering and replacement hassle free.  
• Cost effective - This subwoofer board can be made in a fraction of cost compared to similar Subwoofer boards available in market. 

 U1, U2  - NE5532, TL072, JRC4558, LM833, OPA2134