Cheap car subwoofer filter circuits
This car subwoofer circuit set Suitable for use with a great car audio system. Since this circuit is designed to operate with a 12 volt DC power.
Audio filters
Mini subwoofer circuit using LF347N
This is mini subwoofer circuit stereo system for home using low noise LF347, it can select frequency output filter is 60Hz,50Hz and boost up preamplifier. […]