APS 8 R
Subwoofer Driver
|
200 mm
|
500 W Peak Power
|
4 ohm
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-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 | 4 Ohm |
| Magnet Material | HIGH DENSITY FLUX FERRITE |
| Voice Coil Ø | 40 mm |
| Woofer Qes | 0,43 |
| 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 | 3.7 Ohm |
| Fs | 32 Hz |
| Vas | 26.5 l |
| Mms | 80 g |
| Cms | 0.33 mm/N |
| BL | 11.5 T•m |
| Qms | 5.1 |
| Qts | 0.41 |
| Le Standard | 1.45 mH |
| Spl | 84 dB |
General
| Weight | 3.04 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 reflex enclosure
starting from 8.5 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 excursion conditions. - Water-repellent pressed paper 8 in. cone featuring a profile developed
with FEM simulation and optimized with the Klippel Scan Vibrometer. - Specifically developed to be combined with either the Audison AP8.9 bit
(2 CH bridged) or AP4.9 bit /AP4 D (2 CH bridged) amplifiers. - Steel mesh grille and plastic gasket included.
