Tl072 Subwoofer Circuit

Active subwoofer filter circuit based on tl072 opamp is designed for use with power amplifier with good parameters narrow frequency response.

Tl072 subwoofer circuit.

Subwoofer controller uses a single ic tl072 one channel u1a is used as a mixer channel left right and also as a buffer for the channel u1b so that the controller is not affected by impedance input that may vary in value and other channels u1b is used as a controller. Subwoofer filter using ic op amp tl072 to enhancing bass amplifier. Input voltage 38vdc. The system s task is to collect signals from both channels and then separate low frequencies.

Out of the two opamps inside the chip ic1a is wired as a buffer. The circuit is designed around the tl072 dual bifet opamp ic. Audio input is processing on ic tl072. Circuit tl072 opamp is built on operational amplifier.

Subwoofer filter using ic op amp tl072 to enhancing bass amplifier. The transition band of the filter is between about 10hz bottom and 80hz. Switch s1 is the phase control switch which can be used to make the subwoofer in phase with other speakers. The active subwoofer function to filtering bass tones low and add settings for low tones frequency ranging from 20hz up to 70hz on audio signal input output the settings contained in the pot stereo that you can see in the picture circuit schematic.

Complete subwoofer filter circuit tl072 editor elcircuit published saturday november 05 2016 here is my experience in designing and building a subwoofer. In this subwoofer filter first at important parts is the active circuit filter 40 hz 12db octave. The active subwoofer function to filtering bass tones low and add settings for low tones frequency ranging from 20hz up to 70hz. The important thing for the subwoofer amplifier is the bass filter circuit.

And i share my other project subwoofer filter but using ic 4558 subwoofer module 4558. Nov 29 2016 circuit of active subwoofer circuit by using x4 ic tl082 or you can using equivalent ic 4558 jrc4558d jrc4558 tl072. 12v symmetrical zenerli regulated circuit max. Audio input is processing on ic tl072 this circuit need voltage supply about 5 15 volt.

This is circuit of active subwoofer circuit by using x4 ic tl082 or you can using equivalent ic 4558 jrc4558d jrc4558 tl072. Sep 18 2018 the circuit below is a circuit to filter out low tone subwoofer. The left and right audio inputs after mixing is fed to the input of the ic1a using the dpdt switch s1. The circuit below is a circuit to filter out low tone subwoofer.