The Prima series of amplifiers and speakers from Audison is highly regarded for its installation flexibility and impressive performance. The most recent additions to the Prima line are three new component subwoofers and five loaded subwoofer enclosures. Like the Prima amps and speakers, the new Audison Prima subwoofers are designed as a perfect upgrade to any factory-installed audio system.
Prima Shallow-Mount Subwoofers
The new Prima subwoofers include two eight-inch models and a 10-inch. The APS 8 D and APS 10 D feature dual four-ohm voice coils with suspension designs optimized for compact sealed enclosures. The APS 8 R subwoofer has a single four-ohm voice coil and is intended for use in a bass-reflex (vented) enclosure.
All three subwoofers are optimized to provide excellent output. The shape of the woofer cone is angled to clear the spider mounting ledge to increase excursion capabilities. The APS 8 R and APS 8 D are specified as having an Xmax (one-way cone travel limit) of 8.8 mm and the APS 10 D can move 11 mm in each direction.
The APS subs feature a vented pole piece that allows hot air to escape from the inside of the motor structure and peripheral vents underneath the spider mounting plateau to keep the outside cool. This second row of vents allows reliable operation when sub is mounted near the back wall of an enclosure.
The APS 10 D has a mounting depth of 3.46 inches and stands out 1.23 inches from the mounting surface. The driver is optimized to function well in enclosures with a volume as small as 10 liters (0.35 cubic feet). The APS 8 R and APS 8 D subwoofers have a mounting depth of 3.11 inches and extend forward 0.98 inches. The APS 8 D will work in 7.5-liter (0.26 cubic-foot) enclosures while the APS 8 R needs a mere 8.5-liter (0.30 cubic-foot) vented design. The larger vented enclosure will provide roughly 4 dB more output around 50 Hz for a given input signal.
Loaded Subwoofer Enclosures
Each of the new subwoofers is available loaded in a custom-tailored enclosure. The enclosures are constructed from medium-density fiberboard and include internal bracing for excellent rigidity. Rounded corners give the enclosures a bespoke look that blends nicely with modern vehicle interiors.
Your installer can mount the enclosure with the sub facing upward into the listening area for excellent upper bass impact or use the provided mounting feet to fire the sub down into the floor to enhance low-frequency output. Audison calls this design 2 Sides 2 Sounds or 2S2 for short. The optional mounting feet include hook-and-loop fasteners to help keep the enclosure in place.
The terminal cup on the side of each enclosure includes a connector that makes the system instantly compatible with Audison Prima Plug & Play connectors. Of course, high-quality spring-loaded terminals are also included so the enclosures can be used with any amplification solution.
Prima Active Subwoofer Enclosures
Audison has also introduced eight- and 10-inch sealed enclosures with built-in amplifiers. The unique Class D amplifiers feature a design called he·li or High Efficiency-Low Impedance. The drivers used in the powered enclosures have the same mechanical design as their APS 8 D and APS 10 D brethren but use low impedance voice coils. This design allows the amplifiers to work directly with the voltage supplied by the vehicle electrical system and negates the need for, and efficiency losses associated with, a switching power supply. The result is 250 watts for the APBX 8 AS and an impressive 400 watts for the APBX 10 AS enclosures.
Both amplified subwoofer enclosure solutions include electronic variable crossovers, adjustable phase and a bass boost circuit. The amplifiers will accept speaker-level inputs or a preamp signal and include automatic turn-on circuitry for use when connected to a factory-installed audio system. Electrical connections are on a quick-connect plug that allows the enclosure to be removed easily. Both enclosures include an HRC AP remote level control to allow you to adjust the bass level from the front seat.
Model Width Height Depth
APBX 8 R 18.62” 13.15” 5.16”
APBX 8 DS 14.84” 13.15” 5.16”
APBX 8 AS 15.2” 11.73 6.22”
APBX 10 DS 18.58” 13.15” 5.59”
APBX 10 AS 18.11” 13.31” 6.22”
Adding a subwoofer is the best and easiest way to improve the performance of your stereo. Audison’s new Prima subwoofers provide you the option of a drop-in solution or give your installer the opportunity to create something unique for your vehicle. Visit your local authorized Audison retailer to experience the new Prima subwoofers for yourself.