Focal
ISUB BMW4
ISUB BMW4
Subwoofer
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ISUB BMW 4 is a subwoofer that delivers powerful bass, thanks in part to its neodymium motor, a high-performance Focal technology. With the ISUB BMW 4, sound is natural and installation quick, thanks to the spacer integrated into the chassis, which allows perfect integration into original locations. Thanks to its 4 Ohms impedance, it's ideal for use with your original amplification.
KEY POINTS
- Quick installation
- No wires to cut, no modifications
- 100% compatible with your vehicle
- Superior sound quality
- Mounting accessories included
Find out more about compatible kits, installations, models and systems
SPECIFICATIONS
Sound - Acoustics
- Product type : Subwoofer
- Loudspeakers : Subwoofer: 7.9"
- Membrane : Black Polyglass
- Frequency response (+/- 3dB) : 35Hz - 200Hz
- Maximum power : 180 watts
- Maximum SPL (peak@1m) : 83 DECIBEL
- Motor : Neodymium
- Nominal Impedance : 4 Ω
- Nominal power : 90 W RMS
- Sensivity : 83 dB
- Suspension material : Butyl
Sound - Electronics
- RMS power : 90 W RMS
Design
- Depth behind surface (Mounting depth) : 36 mm / 1.4 in
- Cut-Out diameter : 217 mm / 8.5 in
- Weight : 970 g / 2.14 livre
Accessories
- Supplied with screws and mounting brackets : Yes
TECHNOLOGIES
POLYGLASS MEMBRANE
Well-defined mids
The diaphragm, the key component of a loudspeaker, is at the heart of our acoustic engineers' research. Polyglass technology, exclusive to Focal, consists of applying fine glass microbeads to a cellulose pulp cone. This process reconciles the excellent damping of paper with the rigidity of glass. The stiffness index is almost 10 times that of polypropylene. Adjusting the mass-rigidity-damping ratio results in a remarkably linear frequency response curve, right from the membrane design stage. This innovation also significantly increases definition in the midrange register.
