Focal ISUB BMW Inside Series Direct Fit Sub Under Seat Subwoofer 2ohm
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The Focal ISUB BMW 2 is an 8-inch, 2-ohm direct-fit under-seat subwoofer designed specifically for BMW and MINI vehicles. It uses a neodymium motor and Polyglass cone and handles 90W RMS (180W peak). It is part of Focal's Inside Series.
This listing is the 2-ohm single unit. The ISUB BMW Inside Series is also available as the ISUB BMW 4 (4 ohm, single), ISUB BMW 4 pair, and ISUB BMW 8 (8 ohm).
Key specifications
- Type: 8-inch under-seat subwoofer, single
- Impedance: 2 ohms
- Power handling: 90W RMS (180W peak)
- Sensitivity: 83dB
- Frequency response: 35Hz to 200Hz
- Cone: Polyglass with butyl rubber surround
- Magnet: neodymium
- Grille: not included
Subwoofer
A direct-fit under-seat subwoofer built specifically for BMW and MINI. The neodymium motor delivers clean, powerful bass with no cutting or modification required. For a self-contained alternative, see the Focal ISUB Active, which includes a built-in amplifier.
Focal Inside for BMW & MINI
The ISUB BMW 2 fits directly into the original under-seat location using an integrated chassis spacer. Its 2-ohm impedance is compatible with the vehicle's original amplification system.
- Quick installation
- No wires to cut, no modifications required
- 100% compatible with your vehicle
- Superior sound quality compared to the original equipment
- Mounting accessories included
Explore the full range in Focal Inside.
Specification
| power handling | 90 watts RMS (180 watts peak) |
|---|---|
| frequency response | 35-200 Hz |
| sensitivity | 83 dB |
More specs
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What's Included
- 1 Subwoofer
- 1 Foam gasket
- Four 1" Screws
- User manual
- Focal window sticker
- Adhesive backed Focal Inside badge
Focal
About the Focal ISUB BMW 2
From our tech experts at CEN
The Focal ISUB BMW 2 is an 8-inch, 2-ohm component subwoofer from Focal's Inside Series, designed as a direct-fit under-seat upgrade for BMW and MINI vehicles. It uses a Polyglass cone and neodymium motor, handling 90W RMS (180W peak) with a frequency response of 35Hz to 200Hz. Its 2-ohm impedance is matched to the vehicle's original amplification system.
Who it suits
This suits BMW and MINI owners who want improved bass without cutting or permanently modifying their car. The integrated chassis spacer fits into the original under-seat location using the included screws and foam gasket. For a universal under-seat option, see the Focal ISUB Twin Sub.
Our tech experts advise
Confirm your exact BMW or MINI model is compatible before purchasing — check the Focal Inside compatibility list or ask us directly. Note that a grille is not included, so the cone sits exposed beneath the seat. As a passive driver, it relies on the vehicle's factory amplifier or an aftermarket one. Fitting is priced per vehicle; see our car audio installation page.
Explore the full Focal range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Focal
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
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- 2
We confirm the parts
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Bring it to our Beeston workshop and we do the rest.
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Plug & Play Kits
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Focal Inside Series
The Focal Inside offer is aimed at all drivers wishing to replace their car's original system with a hi-fi quality Plug & Play solution that integrates easily, without modifying the interior. Different configurations are available by brand (over 50 brands), by car model (1000 vehicle models).
Focal Car Audio
Deliver exceptional sound clarity and precision for your vehicle.
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Frequently Asked Questions
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
Q: Is the ISUB BMW 2 a single subwoofer or a pair?
A: This listing is a single 8 inch subwoofer. The box contains one subwoofer, one foam gasket, four 1 inch screws, a user manual, a Focal window sticker and an adhesive-backed Focal Inside badge.
Q: Which ISUB BMW version do I need?
A: The ISUB BMW comes in 2, 4 and 8 ohm versions (the 8 ohm ISUB BMW 8 is for Harman Kardon systems), and the impedance needs to suit your original amplification. Contact CEN with your registration and we will confirm which one matches your car.
Q: Does the ISUB BMW 2 need a separate enclosure?
A: No. It fits directly into the original under-seat location using an integrated chassis spacer.
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