Xtremevision Soundxtreme ST-AP5 Bass Maximizer

The Xtremevision Soundxtreme ST-AP5 is a compact bass maximizer and restoration processor that rebuilds low-frequency detail and gives you precise, dash-mounted bass control.

Designed for car audio enthusiasts who want deeper, tighter low end without buying a larger amplifier or replacing speakers, the AP5 injects recreated bass information back into the signal path while offering adjustable subsonic filtering and a front-mounted knob. It combines efficient equalization circuitry, gold-plated contacts, and a lighted display so you can tune bass levels from the driver's seat and reduce unwanted rumble.

How does the AP5 restore lost bass in compressed or small-speaker audio?

The AP5 analyzes incoming audio and accurately recreates low-frequency components that small factory speakers or lossy sources often lack. Rather than simply boosting bass, it reconstructs missing harmonics and reintegrates them into the mix for a fuller, natural-sounding low end.

• Reconstructs low-frequency information using restoration circuitry
• Efficient bass equalization avoids excessive distortion
• Thorough frequency response down to 10 Hz for deeper emphasis
• Low T.H.D (0.003%) preserves clarity at high levels

What controls and connections let me tune bass from the driver's seat?

The unit includes a dash-mount remote knob and an illuminated level indicator so you can quickly dial bass in while driving. The remote integrates with the AP5's subsonic filter and output level controls for immediate, on-the-fly adjustments without opening the main unit.

• Included dash mount bass knob for instant level changes
• Lighted bass restoration display for night visibility
• Subsonic filter to eliminate excessive rumble below useful frequencies
• Gold-plated contacts for reliable, low-loss signal transfer

Will the AP5 integrate with my existing car stereo and subs?

The AP5 was made to sit in-line with most aftermarket or factory systems: it accepts typical signal levels and outputs a clean, enhanced low-frequency signal to amplifiers or powered subwoofers. With balanced input noise rejection and a high signal-to-noise ratio, it keeps background hiss low while adding bass depth.

• Maximum input level 15V RMS and output peak 13.5V for broad compatibility
• Balanced input noise rejection >60 dB and 130 dB SNR for quiet operation
• Output impedance 150 ohms and input impedance 10k ohms for stable interfacing
• Low 150 mA power draw and 1 A recommended fuse for easy install

How does the AP5 affect overall sound quality and system safety?

The processor focuses on improving perceived bass without introducing audible artifacts by using high-quality circuitry and strict distortion specs. It also includes a subsonic filter to protect speakers from damaging ultra-low frequencies and maintains proper signal levels to avoid clipping downstream equipment.

• T.H.D rating 0.003% keeps distortion negligible at listening levels
• Subsonic filtering reduces harmful excursion on subs
• Gold-plated connectors reduce contact resistance and signal loss
• Compact housing (5.5" D x 6.75" W x 1.5" H) fits typical mounting locations

Who is this for: The Soundxtreme ST-AP5 suits drivers who want to extract more authoritative bass from existing speakers, improve low-end presence for compressed sources, or fine-tune a subwoofer system without major hardware changes. It's appropriate for installers and enthusiasts seeking a compact processor with precise remote control, robust specs, and easy integration into aftermarket or factory audio setups.