The AVBX 10 D4 II is a compact, high-performance 10-inch loaded subwoofer enclosure engineered to deliver precise, controlled bass in space-limited installations. Part of the VOCE II line, it combines refined acoustic design with installation flexibility, making it ideal for both OEM upgrades and custom systems where space is at a premium. Its ultra-shallow sealed enclosure is designed to maximize low-frequency accuracy while minimizing footprint. Built from high-density 15 mm MDF with internal bracing, the enclosure provides excellent rigidity and damping, reducing unwanted resonance and ensuring clean, articulate bass reproduction even at higher output levels. The enclosure is acoustically matched to the included AV 10 D4 II subwoofer, featuring a dual 4-ohm voice coil configuration for flexible system integration. With 550 watts RMS power handling and 1100 watts peak capability, it delivers strong, dynamic performance with controlled excursion, supported by a high-excursion design and optimized motor structure. Installation versatility is enhanced by the 2S² dual-orientation design, allowing both down-firing and up-firing configurations to suit different vehicle layouts and acoustic goals. The Sub Smart Plug (SSP) terminal simplifies wiring with a combination of plug-and-play connectivity and traditional push terminals, supporting high-current connections with minimal effort. Specifications: Speaker Size: 250 mm (10") Impedance: 4 + 4 ohm Power Handling (RMS): 550 W Power Handling (Peak): 1100 W Frequency Response: 25 – 400 Hz Xmax: 16.8 mm Xmech: 20 mm Voice Coil Material: CCAW Former Material: Glass Fiber Cone Material: Polypropylene with Mica Injection Surround Material: Rubber Magnet Material: High Density Flux Ferrite Chassis Material: Aluminium Fs: 36 Hz Qts: 0.7 Vas: 14.8 L Re: 1.82 ohm Le: 1.8 mH Mms: 250 g Cms: 0.07 mm/N BL: 11.2 T·m Reference Efficiency: 83.5