Low Pass Filter with 3x Bass Boost – Based on 4558 Op-Amp | Suitable for 12-0-12V Circuits

Enhance your audio system’s low-frequency performance with this powerful Low Pass Filter circuit, featuring a 3x bass boost to deliver richer and deeper bass. Built around the reliable 4558 dual operational amplifier, this filter is perfect for amplifier circuits running on a 12-0-12V power supply, such as those based on TDA2030 or TDA2050 ICs.

Designed to effectively isolate and amplify bass frequencies, it improves the overall sound quality by reducing unwanted high-frequency noise and boosting the low-end response. Ideal for DIY subwoofer amplifiers, home audio projects, and custom speaker systems, this circuit ensures clean, punchy bass that enhances your listening experience.