ST-AP6

Advanced Bass Restoration & Signal Enhancement

The SoundXtreme ST-AP6 is a high-performance digital bass processor designed to restore missing low-frequency content in compressed audio signals. It intelligently analyzes music input and reconstructs deep bass harmonics, delivering a richer, more powerful low-end response across your entire audio system.

Whether used with factory head units or aftermarket amplifiers, the ST-AP6 enhances bass presence without sacrificing overall clarity, giving your system a more impactful and immersive sound experience.

Precision Bass Control & Real-Time Adjustment

Equipped with a dash-mounted dual-control remote, the ST-AP6 allows on-the-fly adjustment of bass level and processing intensity. Users can fine-tune bass frequency response, width, and level to achieve their preferred sound signature for different music genres.

Its parametric bass control system provides flexible tuning options, while the PFM subsonic filter helps eliminate ultra-low frequencies that can strain subwoofers, improving system efficiency and safety.

High-Fidelity Processing & Clean Signal Output

Built with a low-distortion design and high headroom PWM power supply, the ST-AP6 maintains signal integrity even at higher output levels. With an extremely low THD rating and high signal-to-noise ratio, it ensures clean, accurate bass enhancement without introducing unwanted noise or distortion.

Gold-plated contacts and balanced input noise rejection further improve signal stability, making it suitable for both basic and high-end mobile audio systems.

Highlights

• Digital bass restoration and maximization processor
• Reconstructs missing low-frequency audio information
• Dual-knob dash remote for real-time bass control
• Parametric bass tuning: frequency, width, and level control
• PFM subsonic filter protects subwoofers from ultra-low frequencies
• High signal-to-noise ratio: 130dB for clean audio output
• Ultra-low distortion (THD: 0.003%) for high fidelity sound
• Wide frequency response: 10Hz – 100kHz
• Balanced input noise rejection (60dB) for stable performance
• PWM high headroom power supply for consistent output
• Gold-plated contacts for improved signal transfer
• Lighted bass restoration display for visual feedback

Package Contents

• 1 × SoundXtreme ST-AP6 Digital Bass Restoration Processor Unit
• 1 × Dash-Mount Dual Knob Bass Remote Control
• 1 × Wiring Harness / Connection Cable Set
• 1 × User Installation & Setup Manual