PT2351 Subwoofer Circuit

Hi friends after a long interval I would like to share an interesting circuit of a low pass subwoofer filter board. This subwoofer filter board is based on a single ic of PT2351, Nowadays most of the remote kits are composed with this ic subwoofer circuit. PT2351 Subwoofer circuit is very easy to build on your dotted PCB or normal copper clad by PCB etching Method. This subwoofer low pass filter have some advantages of

• Adjustable and fixed frequency as per our interest is possible by changing the capacitor values.
• Working voltage is 12v DC single power supply
• easily work with DC adapter

PT2351 Datasheet – Princeton Technology

pt2351 18 subwoofer crossover low pass filter cheap utilizing CMO technology having a slope rate of -12 DB . using an external capacitor and other components the role of point can be adjusted, to meet your needs or requirements. pt2351 ic has low distortion and high input impedance, low output impedance design the application circuit and pin assignment are optimized for easy PCB layout and cost saving benefits.

Features

• CM technology
• Single power supply from 3 volt to 9 volt
• Second order low pass filter design with slope rate -12 DB
• Low output impedance
• List external components
• 2 channel input are mixed to a single subwoofer output
• Available in 8 pin SO or dip package

PT2351 pinout

PT2351 subwoofer filter circuit diagram