Audison APS8R Prima Line Subwoofer

Description    
With the aim of providing high acoustical output even when used with lower power, the APS 8 R was designed for use in an 8.5 - litres reflex enclosure, with tuning between 30 and 40Hz. The APS 8 R has been specifically developed to be combined with either the AP8.9 bit or AP4.9 bit / AP4 D. Prima subwoofer components have been developed with a primary goal: to deliver high output in tight spaces. Output is a matter of excursion; the more air the cone moves, the more output. However reduced mounting depth traditionally has meant low excursion. Prima subwoofers employ a special cone - dust cap - basket geometry which guarantees large excursion of the mobile group, while keeping the mounting depth to a minimum. The surround and spider have been carefully designed to prevent the "rocking - mode" phenomenon. The cooling circuit has been designed with air vents on the basket underneath the spider, eliminating the need for vents on the bottom - plate. This allows the subwoofer to be mounted close to the back wall of the enclosure, making the most of the reduced mounting depth.

Specification    

• Component Subwoofer Size mm (in.) 200 (8)
• Power Handling
• 500W peak
• 250W continuous
• Impedance 4 Ohm
• Centre to centre distance mm (in.) 207 (8.15)
• Magnet size D x d x h mm (in.) 120 (4.72) x 50 (1.97) x 28 (1.1)
• Total driver displacement l (cu.in.) 0,67 (0.01)
• Weight of one speaker kg (lb.) 3,1 (6.83)
• Magnet High density flux ferrite
• Cone Water - repellent pressed paper
• Subwoofer Voice Coil mm (in.) 40 (1.57)
• Xmech +/- 16,5 (0.65)
• Mounting Cut-out 187mm
• Mounting Depth 79mm

Features

• Ultra - low profile (3.11 in. / 79 mm) for maximum installation flexibility.
• Designed to deliver maximum performance in a sealed enclosure starting from 7.5 lt.
• Special designed cone - dust cap - basket geometry which guarantees a long linear excursion capability (almost 9 mm, one - way) while keeping the mounting depth to minimum.
• Air vents on the basket underneath the spider, eliminating the need for the central pole vent allowing mounting close to rear wall of enclosure.
• Massive motor assembly optimized with FEM (Finite Element Modelling) for perfect control under high power, high excursion conditions.
• Water - repellent pressed paper 8 in. cone featuring a profile developed with simulation and optimized with the Klippel Scan Vibrometer.
• Single 4 ohm voice coil design
• Steel mesh grille, hardware and plastic gasket included.