AUDISON AVBX10D4II - Voce II 10 Inch Subwoofer Box 4Ω

AUDISON AVBX10D4II - Voce II 10 Inch Subwoofer Box 4Ω

Compact, precise and ready to perform. 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. This ultra-shallow sealed enclosure architecture is engineered to deliver tight, accurate and dynamic bass while preserving valuable in-vehicle space, built from high-density 15mm MDF with internal bracing ensuring maximum rigidity and effective damping eliminating unwanted resonances and coloration. Featuring the AV 10 D4 II subwoofer with dual 4-ohm voice coils (550W RMS / 1100W peak), 1.5-inch CCAW voice coil, FEM-optimized magnetic circuit, and Airflow Venting Cooling (A.V.C.) technology, the internal volume and damping are acoustically matched for seamless integration and controlled low-end response even in space-limited applications. The innovative 2S² dual-orientation design allows both Down-Firing or Up-Firing configuration adapting to available space and acoustic goals, while the Sub Smart Plug (SSP) terminal combines Plug-&-Play convenience with traditional push connectors ensuring fast, secure and high-current-ready wiring. Compact dimensions (531 x 361 x 160mm) provide space-efficient footprint for OEM integration fitting effortlessly in wide range of vehicles, rigid enclosure damping ensures accurate transient response minimizing box resonances for clean reproduction of kick drums and basslines, and refined minimalist styling reflects VOCE II design language combining performance and elegance. Complete with eID technology for product registration and technical documentation access, 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 Overview

The 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.

Important Notes:

Complete Plug-&-Play Solution: This is a complete sealed subwoofer enclosure system - no additional enclosure construction required. The AV 10 D4 II subwoofer is factory-installed and acoustically matched to the enclosure's internal volume and damping. Simply connect amplifier wiring via the Sub Smart Plug terminal and mount in vehicle. Professional installation recommended for optimal acoustic positioning and secure mounting.

Dual 4-Ohm Voice Coil Wiring: Features dual 4Ω voice coils allowing series wiring (8Ω final impedance) or parallel wiring (2Ω final impedance). Series configuration suits most factory and aftermarket amplifiers rated for 4-8Ω loads. Parallel configuration (2Ω) extracts higher power from 2-ohm stable amplifiers but generates more heat—verify amplifier is rated 2-ohm stable before parallel wiring. Use minimum 8 AWG high-gauge wiring for high-current connections.

Amplifier Power Matching Critical: Match amplifier RMS output to 550W RMS rating at your configured impedance (8Ω series or 2Ω parallel). Underpowering causes clipping distortion damaging voice coils. Overpowering beyond thermal limits causes voice coil failure. Ideal amplifier range: 400-600W RMS. Use proper gain structure, signal processors, and subsonic filtering (25Hz high-pass) protecting against excessive excursion below Fs (36Hz).

2S² Dual-Orientation Installation: Enclosure supports both Down-Firing (subwoofer facing floor) or Up-Firing (subwoofer facing upward) configurations. Down-Firing provides ground plane loading and tight bass coupling with vehicle floor. Up-Firing provides more direct acoustic output toward cabin. Choose orientation based on available mounting location, acoustic goals, and vehicle-specific installation constraints.

Secure Mounting Required: Ultra-shallow enclosure must be securely mounted to vehicle structure using appropriate hardware. Unsecured enclosure movement during driving degrades sound quality, causes rattles, and poses safety risk. Use mounting brackets, straps, or custom mounting solutions ensuring rigid attachment. Verify mounting location does not interfere with vehicle operation, cargo access, or safety equipment.

Key Features

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

High-Density 15mm MDF Construction - Built using robust MDF panels and strategic internal bracing, ensuring maximum structural rigidity and suppressing unwanted resonances for clean low-frequency output.

2S² Dual-Orientation Architecture - Allows both Down-Firing and Up-Firing installation, offering installation flexibility depending on acoustic goals and available space.

Sub Smart Plug (SSP) Terminal - Combines quick-disconnect Plug-&-Play functionality with traditional push connectors, enabling secure, efficient wiring and hassle-free maintenance.

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

Factory-Installed Subwoofer - Complete plug-&-play solution with AV 10 D4 II subwoofer pre-installed and optimally positioned within matched enclosure.

550W RMS Power Handling - Exceptional thermal stability and mechanical robustness ensure reliable management of 550W RMS continuous power allowing sustained high-performance bass output.

Dual 4Ω Voice Coils - Flexible impedance configuration wires series (8Ω) or parallel (2Ω) matching various amplifier capabilities and system designs.

1.5" CCAW Voice Coil - Copper-Clad Aluminum Wire combines exceptional thermal handling with reduced mass maximizing responsiveness, precision, and durability.

FEM-Optimized Magnetic Circuit - Proprietary FEM simulation platform concentrates magnetic flux precisely around voice coil gap enhancing efficiency, responsiveness, and control.

Airflow Venting Cooling (A.V.C.) - Strategically placed internal channels optimize airflow and cooling efficiently dissipating heat maintaining consistent performance at high SPL.

Radial Reinforcement Framework (R.R.F.) - Internal structural rays beneath cone significantly increase mechanical rigidity reducing deformation risks during high-excursion operations.

16.8mm Xmax Linear Excursion - Substantial linear excursion capability enables deep bass output while maintaining control and distortion-free performance.

Space-Efficient Footprint - Compact dimensions (531 x 361 x 160mm) designed to fit effortlessly in wide range of vehicles, offering OEM-friendly solution for discreet high-performance bass.

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

High-Current Connectivity Support - Designed to accommodate high-gauge wiring for powerful system configurations without electrical bottlenecks.

Refined VOCE II Styling - Minimalist design combines functionality with elegance, matching VOCE II speaker aesthetic for cohesive system appearance.

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

Technical Specifications

Note: Thiele-Small parameters specified with voice coils connected in series (4+4Ω = 8Ω).

Frequently Asked Questions

Q: What makes this different from buying a separate AV10D4II subwoofer?

A: The AVBX10D4II is a complete plug-&-play solution with the AV 10 D4 II subwoofer factory-installed in an acoustically matched enclosure. The internal volume, damping, and bracing are precisely engineered for optimal performance, eliminating the need for custom enclosure construction. The ultra-shallow sealed design (160mm depth) preserves valuable vehicle space while the 2S² dual-orientation system and Sub Smart Plug terminal provide installation flexibility. This is ideal for users wanting premium VOCE II performance without custom fabrication work.

Q: How do I wire the dual 4Ω voice coils?

A: The dual 4Ω voice coils provide two wiring options via the Sub Smart Plug terminal: Series connection presents 8Ω to the amplifier - suitable for most amplifiers and standard power applications. Parallel connection presents 2Ω to the amplifier - requires amplifier stable at 2Ω loads and provides higher power transfer. The Sub Smart Plug combines Plug-&-Play quick-disconnect functionality with traditional push terminals for secure high-current wiring. Use minimum 8 AWG wiring and verify your amplifier's impedance stability at your chosen configuration.

Q: What amplifier power do I need for the AVBX10D4II?

A: Match amplifier RMS output to the 550W RMS rating at your chosen impedance (8Ω series or 2Ω parallel). For 8Ω series wiring, use amplifier rated 400-600W RMS at 8Ω. For 2Ω parallel wiring, use amplifier rated 400-600W RMS at 2Ω (verify amplifier 2Ω stability first). Underpowering reduces performance potential; overpowering risks thermal or mechanical damage. Quality amplifiers with proper gain structure prevent clipping which causes more damage than power ratings.

Q: What's the difference between Down-Firing and Up-Firing installation?

A: The 2S² dual-orientation architecture allows flexible mounting: Down-Firing (subwoofer facing floor) provides ground plane loading effect coupling bass energy with vehicle floor for tighter, more impactful low-frequency response. This orientation works well in trunk or cargo area installations. Up-Firing (subwoofer facing upward) provides more direct acoustic output toward cabin for greater perceived output and clarity. Choose based on your vehicle's acoustics, available mounting location, and whether you prioritize impact (Down-Firing) or direct output (Up-Firing).

Q: Will this fit in my vehicle and how do I mount it securely?

A: The compact dimensions (531 x 361 x 160mm / 20.9 x 14.2 x 6.3 in) with ultra-shallow 160mm depth are designed for space-efficient OEM integration in most vehicles. Verify available space in your intended mounting location (trunk, under-seat, cargo area). Secure mounting is critical - the enclosure must be rigidly attached to vehicle structure using appropriate mounting brackets, straps, or custom solutions. Unsecured movement degrades sound quality and poses safety risk. Professional installation recommended to ensure optimal acoustic positioning, secure mounting, and proper wiring configuration.