Audison Prima APS 8 R 8" Car Subwoofer Driver Single 4 Ohm Sub with Grill 250w RMS

The Audison Prima APS 8 R is an 8-inch (200mm) single 4 ohm subwoofer driver from the Audison Prima range, rated at 250W RMS (500W peak). It features an ultra-low 79mm mounting profile and is designed for a reflex enclosure of 8.5 litres tuned between 30 and 40Hz. A steel mesh grille is included.

This listing is for the single 4 ohm reflex version. For dual 4 ohm voice coils in a sealed box, see the Audison Prima APS 8 D, or choose the Audison Prima APBX 8 R loaded enclosure.

Key specifications

• Size: 8 inch (200mm)
• Impedance: single 4 ohm voice coil
• Power: 250W RMS / 500W peak
• Mounting depth: 79mm (3.11 inch)
• Recommended enclosure: reflex, 8.5 litres, tuned 30–40Hz
• Voice coil diameter: 40mm
• Xmax: 8.8mm
• Sensitivity: 84dB
• Grille: steel mesh, included

Audison Prima

The Audison Prima range is built for car enthusiasts who want high-quality audio from components that integrate neatly with factory (OEM) systems — without compromising on space.

The APS 8 R is designed to deliver high acoustic output even from lower-powered amplifiers. It is specifically developed to pair with the Audison AP8.9 bit (2 CH bridged) or AP4.9 bit / AP4 D (2 CH bridged) amplifiers. For a ready-to-install active solution, see the Audison Prima APBX 10 AS2.

• Ultra-low 79mm (3.11 inch) mounting profile for maximum installation flexibility.
• Designed for maximum performance in a reflex enclosure from 8.5 litres.
• Special cone-dustcap-basket geometry provides long linear excursion (approximately 9mm one-way) while minimising mounting depth.
• Air vents on the basket beneath the spider eliminate the need for a central pole vent, allowing mounting close to the rear wall of the enclosure.
• Massive motor assembly optimised with FEM (Finite Element Modelling) for precise control under high-excursion conditions.
• Water-repellent pressed paper 8-inch cone, profiled using FEM simulation and optimised with the Klippel Scan Vibrometer.
• Steel mesh grille and plastic gasket included.

Reduced mounting depth traditionally means reduced excursion. The APS 8 R addresses this with its special cone-dustcap-basket geometry, delivering large excursion while keeping the mounting depth to a minimum. The surround and spider are carefully designed to prevent rocking-mode distortion. The cooling circuit uses basket air vents beneath the spider, removing the need for bottom-plate vents and allowing the driver to sit close to the back wall of the enclosure.