Down4Sound D4S-AX5S | 5-Way Digital Powered Crossover

The Down4Sound D4S-AX5S is engineered for car audio enthusiasts who want direct digital crossover control without complicated software. Unlike DSP processors that require apps or laptops, the AX5S gives you hands-on knob-based precision, letting you tune your system instantly and in real time.

With dedicated subwoofer, front, and rear outputs, the AX5S delivers complete frequency management for your setup. It features independent high-pass, low-pass, and band-pass filters, along with a subsonic filter, bass boost, and phase switch — giving you full control over every driver in your system.

A wired bass remote is included so you can adjust sub levels from the driver’s seat. With high-quality Tiffany RCA jacks, gold-plated terminals, and a rugged chassis, the AX5S combines modern digital control with reliable build quality. 

Perfect for bassheads, pro installers, and anyone who wants digital crossover power without diving into menus or apps.

Key Features 

• 5-Way Digital Powered Crossover
• Independent level controls for sub, front, and rear outputs
• High-pass, low-pass, and band-pass filters
• Subsonic filter for subwoofer protection
• Bass boost control (0–12dB)
• Phase switch (0° / 180°) for subs
• Wired remote bass level control included
• Strong 9V RMS output
• Channel separation: 60dB
• Signal-to-noise ratio: 93dB
• Tiffany RCA and gold-plated terminals
• Fuse protected for reliability
• Compact design: ~7.5 × 5.5 × 1.5 in (190 × 140 × 38 mm)

 Technical Specifications 

• Crossover Type: 5-Way Digital Active
• Frequency Response: 10Hz – 50kHz
• Output Voltage: 9V RMS
• S/N Ratio: 93dB
• Channel Separation: 60dB
• THD: <0.01%
• Inputs/Outputs: RCA (Tiffany)
• Remote Output: 12V
• Fuse Rating: 3A
• Dimensions: 190 × 140 × 38 mm (7.5 × 5.5 × 1.5 in)

Why Choose the AX5s 

• Direct digital control with quick real-time adjustments
• Complete tuning power across sub, front, and rear outputs
• Installer-friendly design with dedicated wired bass remote
• Built tough with premium RCA connections and fuse protection