Audison has engineered a 200 mm shallow-frame underseat woofer for BMW and MINI. These can be used as replacements with OEM amplification, but best results are attained when used in a system upgrade that includes Audison Forza bit amplifiers and BMW integration harnesses.
Audison R&D used an injection-molded frame with graphite fibers (to increase rigidity), and a neodymium magnet for a smaller size (important with the inverted-magnet configuration). The 2”/50mm voice coil is the largest used in any BMW replacement woofer. The inverted-magnet design has a top vent in the pole, to extend thermal performance and power handling. The acoustically-transparent fabric cover keeps debris off of the speaker cone, which prevents distorted sound in the under-seat location.
The APSBMW S8-2.2 2Ω woofer allows more power to be delivered from a single amplifier channel. In many higher-performance BMW systems, the underseat woofer is used on a single set of channels as midbass drivers with purposefully-limited sub-bass extension (while a larger subwoofer does its work in the trunk playing the lowest notes). The APSBMW S8-2 is also perfect for this midbass application.
Component | Woofer | |
Size | mm (in.) | 200 (8) |
Power Handling | W peak
W continuos |
300
150 |
Impedance | Ω | 2 |
Frequency Response | Hz | 40 ÷ 500 |
Magnet size D x d x h | mm
(in.) |
48 (1.89) x 18 (0.71) x 7 (0.28) |
Weight of one speaker | kg (lb.) | 1,21 (2.67) |
Voice Coil Ø | mm (in.) | 50 (2) |
To maximize performance while minimizing bulk and weight.
To increase listening engagement, through powerful and crisp low frequencies, exploiting the acoustic load provided by the factory box.
For a considerable power dissipation and stability even during high excursions.
For OEM placements.
In combination with AP 8.9 bit in active multi-amplification.