Alpine SWC-W84TRA7 Underseat Subwoofer Enclosure for Ford Transit MK7 & Custom
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The Alpine SWC-W84TRA7 is an 8" (20cm) dual voice coil subwoofer pre-installed in a sealed, custom-fit wooden enclosure, designed to fit under the passenger seat of the Ford Transit MK7, Transit Custom and Tourneo Custom (2014 onwards). It is part of Alpine's Adventure Audio range.
A separate amplifier suitable for a dual 2 ohm voice coil subwoofer is required. This kit is not compatible with the Ford Nugget or Transit 7 Custom Nugget.
Key specifications
- Subwoofer: 20cm (8") dual voice coil (2 + 2 ohms)
- Power handling: 60W RMS / 180W peak
- Frequency response: 34Hz – 1.5kHz
- Sensitivity: 91dB (1W/1m)
- Dimensions: 355 x 330 x 170mm
- Included: subwoofer grille, installation brackets, 4-pin connection cable
- Vehicles: Ford Transit 7, Transit 7 Custom, Tourneo 7 Custom (2014 on)
Alpine Adventure Audio
Alpine's Adventure Audio range is engineered for the demanding acoustic environments of motorhomes, camper vans and utility vehicles. The systems are designed to deliver clear, powerful sound on long drives, fit neatly into the cabin without altering its original look, and are straightforward to install.
Bring exciting bass to your vehicle with the SWC-W84TRA7
The SWC-W84TRA7 fits the Ford Transit 7, Transit 7 Custom and Tourneo 7 Custom. The subwoofer comes pre-installed in a sealed, custom-fit wooden enclosure that mounts under the passenger seat, adding powerful bass to your existing sound system. A separate amplifier rated for a dual 2 ohm voice coil subwoofer is required. If you need a remote level control for your amplifier, the Alpine RUX-KNOB2 remote bass level control is compatible with Alpine's X, R, S, V and PDX series amplifiers.
Powerful bass upgrade
The dual voice coil subwoofer handles up to 180W peak and extends bass response down to 34Hz, adding depth and impact to your music on every journey.
Includes custom installation brackets
The SWC-W84TRA7 includes all required installation brackets for fitting under the passenger seat, plus a 4-pin connection cable and subwoofer grille. A separate amplifier suitable for a dual 2 ohm voice coil subwoofer with 180W peak power handling is required.
Explore the full range in Alpine Subwoofers.
Specification
| Frequency response | 34Hz – 1,5kHz |
|---|---|
| Measurements | 355 mm x 330 mm x 170 mm |
| Sensitivity | 91dB/W (1m) |
More specs
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What's Included
- SWC-W84TRA7
- Included subwoofer grill
- Installation brackets
Alpine
About the Alpine SWC-W84TRA7
From our tech experts at CEN
A subwoofer enclosure shaped for the Ford Transit, designed to use the space under the seat or in the void rather than taking up load area.
Who it suits
Ford Transit owners who want bass without losing usable space. On vans and campers this is nearly always the right answer, because a boot box is not an option.
Our tech experts advise
The enclosure is only part of it: the sub still needs amplification and setting up against the rest of the system. Fitment varies by model year and seat type, so get in touch to confirm before ordering. See car audio installation.
Explore the full Alpine range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Alpine
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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
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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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: Does the SWC-W84TRA7 need an amplifier?
A: Yes. A separate amplifier suitable for a dual 2 ohm voice coil subwoofer is required.
Q: Does the SWC-W84TRA7 fit the Ford Nugget?
A: No. This subwoofer kit is not compatible with the Ford Nugget or Transit 7 Custom Nugget.
Q: Which Ford models does it fit?
A: The Ford Transit 7, Transit 7 Custom and Tourneo 7 Custom from 2014 onwards, installed under the passenger seat.
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