About this document
Low Pass Filter for Subwoofer Design by Ionut Cosmin Popa is a document available to read on EtoBox.
This document provides instructions for building a low pass filter circuit to extend the acoustic spectrum to very low frequencies for use with a subwoofer speaker. The circuit uses operational amplifiers to create a variable gain amplifier and variable low pass filter with an adjustable cutoff frequency between 30-150Hz. The parts list and circuit diagram are provided to construct the active filter circuit which can then be connected between a preamplifier and subwoofer amplifier.
- Author
- Ionut Cosmin Popa
- Language
- EN