Audison Voce II - AVBX 10 D4 II - Passive Sub Box

The Audison AVBX 10 D4 II is the compact subwoofer enclosure of the VOCE II line, designed to bring high-end low-frequency performance into tight installation spaces—without compromise.

Its ultra-shallow sealed architecture is engineered to deliver tight, accurate and dynamic bass while preserving valuable in-vehicle space. Built from high-density 15 mm MDF with internal bracing, the enclosure ensures maximum rigidity and effective damping, eliminating unwanted resonances and coloration.

The internal volume and damping are acoustically matched to the AV 10 D4 II subwoofer, which features a dual 4-ohm voice coil for greater wiring flexibility in high-power system configurations. This pairing guarantees seamless integration and controlled low-end response, even in space-limited applications.

Thanks to the 2S² dual-orientation design, the enclosure can be installed in Down-Firing or Up-Firing configuration, adapting to available space and acoustic goals. The Sub Smart Plug terminal combines Plug-&-Play convenience with traditional push connectors, ensuring fast, secure and high-current-ready wiring.

The enclosure’s refined styling reflects the visual identity of the VOCE II speaker line, combining performance and elegance in a single, integrated solution.

Compact, precise and ready to perform, the AVBX 10 D4 II is the ideal solution for adding impactful, controlled bass to OEM or custom installations—where space is limited but expectations are high.

Product Features

1. Ultra-shallow sealed enclosure

Engineered to maximize performance in minimal space, providing tight, articulate bass response while preserving valuable vehicle storage volume.

2. High-density 15 mm wooden construction with internal bracing

Built using robust MDF panels and strategic internal bracing, ensuring maximum structural rigidity and suppressing unwanted resonances for clean low-frequency output.

3. 2S² dual-orientation architecture

Allows both Down-Firing and Up-Firing installation, offering installation flexibility depending on acoustic goals and available space.

4. Sub Smart Plug (SSP) terminal with Plug-&-Play and push connectors

Combines quick-disconnect functionality with traditional push terminals, enabling secure, efficient wiring and hassle-free maintenance.

5. Acoustic design matched to VOCE II subwoofers

Precisely tuned internal volume and damping ensure perfect integration with AV 10 D4 II driver for seamless low-frequency performance.

6. Space-efficient footprint for OEM integration

Designed to fit effortlessly in a wide range of vehicles, offering an OEM-friendly solution for discreet yet high-performance bass enhancement.

7. Refined, minimalist styling consistent with VOCE II design language

Combines functionality with elegance, matching the VOCE II speaker aesthetic for a cohesive system appearance.

8. Rigid enclosure damping for accurate transient response

Minimizes box resonances and coloration, ensuring accurate reproduction of kick drums, basslines and low-frequency effects with minimal distortion.

9. High-current connectivity support

Designed to accommodate high-gauge wiring for powerful system configurations without electrical bottlenecks.

10. eID Technology

Integrated Elettromedia eID system allows product registration, technical documentation access and extended warranty activation.

Technical Specifications

• Nominal diameter: 250 mm
• Impedance: 4+4 Ohm
• Power Handling - Peak: 1100 W
• Power Handling - Continuous: 550 W
• Frequency Response: 25 - 400 Hz
• Chassis Material: ALUMINIUM
• Magnet Material: High Density Flux Ferrite
• Voice Coil Material: CCAW
• Former Material: GLASS FIBER
• Cone Material: POLYPROPYLENE
• Xmax: 16.8 mm (0.66 in)
• Xmech: 20 mm (0.79 in)
• Voice Coil Winding Height: 37 mm (1.46 in)
• Gap Height: 7 mm (0.28 in)
• Driver Displacement Volume: 0.6 L
• Dimensions (L x W x H): 531 x 361 x 160mm

Further Information

Audison Voce II Subwoofers - User Manual (Web)