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Home | Subwoofers | Prima | APS 8 D

APS 8 D Subwoofer Driver | 500 W Peak Power | 200 mm | 4 + 4 ohm

The APS 8 D is designed to deliver maximum performance in a sealed enclosure with ultra-compact volumes from 7.5 lt. to 8.5 lt. It features push connectors for ease of wiring and configurations and has 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-dustcap-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.

Technical Specs

Size 200 mm
Power Handling - Peak 500 W
Power Handling - Continuous 250 W
Impedance 2 Ohm
Magnet Material HIGH DENSITY FLUX FERRITE
Woofer Qes 0,46
Cone Material WATER REPELLENT PRESSED PAPER
Xmax 8.8 mm
Xmech 16.5 mm

Electric-acoustic Specs

D 173 mm
Driver Displacement Volume 0.67
Re 2.1 Ohm
Fs 30 Hz
Vas 25.5 l
Mms 85 g
Cms 0.3 mm/N
BL 8.8 T•m
Qms 5.1
Qts 0.44
Le Standard 1.1 mH
Spl 83.5 dB

General

Weight 3.1 kg

Dimensions

Dimension A 222 mm
Dimension B 187 mm
Dimension C 94.6 mm
Dimension D 79 mm

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-dustcap-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 Modeling)
    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.
  • Dual voice coil design specifically developed to be combined with either
    AP8.9 bit (2 CH + 2 CH bridged), AP5.9 bit (Sub CH) or AP4.9 bit/AP4 D
    (2 CH bridged) amplifiers.
  • Steel mesh grille and plastic gasket included.

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