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The Alpine SWC-D84DU is a 20cm shallow dual voice coil woofer in a sealed enclosure, rated at 75W RMS / 250W peak, designed to fit the centre console below the cup-holder of the Fiat Ducato 8 and Fiat Ducato 9. It is part of Alpine's Adventure Audio range.
Key specifications
- Woofer: 20cm shallow type, dual voice coil
- Power handling: 75W RMS / 250W peak
- Impedance: Dual 2 ohm (2 ohm + 2 ohm)
- Frequency response: 30Hz – 200Hz
- Enclosure: Sealed, fits centre console below the cup-holder
- Included: Steel mounting bracket, ISO adapter, low-pass filter cable
- Vehicles: Fiat Ducato 8 and Fiat Ducato 9
Alpine Adventure Audio
Alpine's Adventure Audio range is engineered for the challenging acoustic environments of motorhomes and camping vans, with the aim of delivering quality sound on long drives without altering the original cabin look. The systems are designed to be straightforward to install and to work within the constraints of vehicles like the Fiat Ducato.
Designed for the Fiat Ducato 8 and 9
The SWC-D84DU fits directly into the vehicle's centre console below the cup-holder — the original cup-holder must be retained. The Fiat Ducato 8's doors lack internal sound-proofing, causing vibration noise from the inner door panels. Placing the woofer in the centre console delivers deeper, cleaner bass and helps offset these acoustic limitations from the outset.
The woofer can be connected to the two rear channels of an original or aftermarket radio, or driven by an external amplifier for greater output. The Alpine RUX-KNOB2 remote bass level control is compatible with supported Alpine amplifiers if you want convenient volume adjustment.
Explore the full range in Alpine Subwoofers.
Specification
| Peak Power | 250 Watts |
|---|---|
| RMS Power | 75 Watts |
| Frequency response | 30Hz – 200Hz |
| Impedance | Dual 2 Ohm |
More specs
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What's Included
- SWC-D84DU
- Wiring Loom
- Installation brackets
Alpine
About the Alpine Alpine SWC-D84DU
From our tech experts at CEN
The Alpine SWC-D84DU is a 20cm shallow dual voice coil woofer in a sealed enclosure, shaped to fit the centre console below the cup-holder of the Fiat Ducato 8 and 9, so it adds bass without taking up living or load space.
Who it suits
Fiat Ducato motorhome and camper van owners who want fuller bass than the factory doors can manage. The Ducato 8's doors lack internal sound-proofing, so moving the low end into the console gives deeper, cleaner bass from the outset. It is part of Alpine's Adventure Audio range.
Our tech experts advise
The original cup-holder must be retained. It can run from the two rear channels of the radio, or from an external amplifier for more output, and the RUX-KNOB2 adds a bass level control on supported Alpine amps. Installation is priced per vehicle, so get in touch with your van details.
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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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: Where does the SWC-D84DU fit?
A: It fits in the centre console of the Fiat Ducato 8 and 9, below the original cup-holder. The cup-holder is required and can be retro-fitted using original manufacturer parts.
Q: Does the SWC-D84DU need an amplifier?
A: Not necessarily. It can be connected to the 2 rear channels of your original or aftermarket radio, or driven by an external amplifier such as the SWA-150KIT for more power output.
Q: Does it fit liner motorhomes?
A: Please check compatibility before purchase if you own a liner motorhome. Contact CEN and we can help confirm fitment.

































