Audison Prima APBX 8 DS 8" Passive Sub Box Compact Subwoofer Enclosure 250w RMS

The Audison Prima APBX 8 DS is a compact sealed 8-inch passive subwoofer enclosure from the Audison Prima range, loaded with a dual 4+4 ohm voice-coil driver and rated at 250W RMS (500W peak), with an ultra-low 131mm profile.

Key specifications

• Driver: 8 inch (200mm), dual 4+4 ohm voice coils
• Power: 250W continuous / 500W peak
• Enclosure: sealed, 8.5 litres
• Height: 131mm ultra-low profile
• Dimensions: 374 x 334mm
• Mounting: 2S² down-firing or up-firing
• Connection: SSP (Sub Smart Plug) plug-and-play terminal block
• Included: metal grille, levelling feet with Velcro inserts

Prima APBX 8 DS: Subwoofer Box, 500W Peak Power, 200mm, 4+4 ohm

This is the sealed, dual voice-coil version. The Audison Prima APBX 8 R is the ported, single 4 ohm alternative, and the driver used here is also sold separately as the Audison Prima APS 8 D.

Audison Prima

Audison Prima is designed for car enthusiasts who want to hear every nuance of their music from components that integrate perfectly with the factory (OEM) system, while respecting the most demanding requirement of OEM integration: space.

• Ultra-low profile (131mm / 5.16 in.) sealed box, perfectly tuned to exploit the APS 8 D driver.
• 2S² (2 Sides/2 Sounds) design lets you choose between down-firing mounting for extended low-frequency reach, or up-firing installation for more punch and definition.
• Levelling feet with Velcro inserts included for a secure grip on boot carpet while allowing easy removal.
• SSP (Sub Smart Plug) features both traditional push contacts and a plug-and-play terminal block for straightforward impedance configuration and quick release. The Audison Prima SSP is also available as a replacement part.
• Rounded corners aid positioning in the boot and act as reinforcement to reduce enclosure resonance.
• Specially designed cone, dustcap and basket geometry guarantees long linear excursion capability (9mm one-way).
• Massive driver motor assembly optimised with FEM (Finite Element Modelling) for precise control under high-excursion conditions.
• Water-repellent pressed paper 8 in. cone, profiled using FEM simulation and optimised with the Klippel Scan Vibrometer.
• Designed to pair with AP1 D mono or AP4.9 bit/AP4 D (2-channel bridged) amplifiers, making use of the bass boost feature and integrated parametric equaliser of the built-in DSP.
• Sturdy metal grille included for full driver protection.

The APBX 8 DS loaded enclosure is built for the best performance-to-size ratio. The 8.5-litre sealed enclosure with 4+4 ohm dual voice-coil configuration is optimised for use with an AP5.9 bit (voice coils paralleled for a 2 ohm load) or with two pairs of AP8.9 bit bridged channels (one bridged pair per voice coil). The driver's high excursion capability allows use of the proprietary BASS BOOST on AP bit amplifiers, delivering rich, dynamic bass from all available power.