Elevate Your Bass with Precision Audio Control

This NE5532-based Low Pass Filter Preamp Board is the essential upgrade for any audio enthusiast looking to add powerful, clean, and controlled bass to their system. Designed as a dedicated signal processor for subwoofers, this compact board sits between your audio source and power amplifier, ensuring only the deep, impactful low frequencies are amplified.

Ideal for DIY car audio projects, home theater upgrades, and custom speaker builds, this module gives you the professional-grade bass management you need without the complexity.

Key Features & Specifications:

• High-Performance Core: Features the renowned NE5532 operational amplifier (op-amp), prized in audio circles for its excellent noise performance, high output drive, and smooth sound signature.

• Dedicated Low Pass Filter: Isolates and passes only the bass frequencies to your subwoofer amplifier, preventing distortion and ensuring a tight, punchy low-end response.

• Wide Power Compatibility: Operates on a flexible single DC power supply from 12V to 25V, making it compatible with common car audio (12V) and home/desktop (18-24V) power sources.

• Single Channel Design: Perfect for driving a mono subwoofer amplifier. For stereo setups, one board is needed per channel or configured for summed (L+R) mono bass output.

• Pre-Amplifier Function: Boosts the line-level input signal to a stronger, optimized level, providing better control and a cleaner signal for your main power amplifier.

Typical Applications:

• Adding a subwoofer output to a car stereo or amplifier that lacks one.

• Building a custom active subwoofer (powered subwoofer) from scratch.

• Improving the bass management in a home audio or DIY Bluetooth speaker.

• As a dedicated bass processor in a bi-amplified or tri-amplified speaker system.

What's in the Box?

• 1 x NE5532 Low Pass Filter Preamp Board