Alpine SWA-150KIT Amp 2 Channel Amplifier with Bass Remote Designed for SWC-D84S
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The Alpine SWA-150KIT is a compact 2-channel Class-AB amplifier kit rated at 2 × 75W (150W total), designed specifically to power the Alpine SWC-D84S subwoofer system in Fiat Ducato III, Citroën Jumper II and Peugeot Boxer II motorhomes and vans. It includes a wired bass remote and wiring kit.
It is the recommended power upgrade for the SWC-D84S subwoofer system, with each channel driving one of the subwoofer's voice coils.
Key specifications
- Max power output: 2 × 75W into 2 ohms (14.4V)
- Amplifier type: Class-AB
- Inputs: 2-channel high-level input (summed to mono) with remote turn-on
- Crossover: Low-pass filter
- Frequency response: 20–125Hz (+0/−3dB)
- Power requirement: 14.4V DC (9–16V allowable)
- Weight: 0.3kg
- Included: Wired bass remote and wiring kit
Recommended power upgrade
The SWA-150KIT completes the amplification for the SWC-D84S subwoofer system, delivering great dynamics and strong bass performance in a motorhome or van install.
150W amplifier
Each output channel drives one of the SWC-D84S's voice coils for excellent dynamic response. The amplifier is compact enough to fit in the compartment behind the cup-holder.
Included bass remote
A wired bass remote knob mounts in the dashboard and connects directly to the amplifier, making it easy to adjust bass level on the fly — whether on a noisy motorway or parked at a campsite.
Included wiring kit
The wiring kit simplifies amplifier installation and connection to the head unit. Note: if your vehicle has an original wiring harness with a 52-pin connector, an additional ISO cable adapter is required (sold separately by third-party suppliers).
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Specification
| Terminal Layout | One side |
|---|---|
| Amplifier Type | Class-AB |
| Channel Design | 2-Channel Input (summed to mono) |
| Crossover | Low-pass filter (LPF) |
| Gain Control | Adjustable |
| Per Channel into 2 Ohms, 14.4V | 2 x 75W |
| Power Requirements | 14.4 V.DC (9 - 16 V allowable) |
| Frequency response | 20 to 125Hz (+0/-3dB) |
| Weight | 0,3kg |
More specs
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What's Included
- SWA-150KIT amplifier
- Wired bass remote
- Wiring kit
Alpine
About the Alpine SWA-150KIT
From our tech experts at CEN
The Alpine SWA-150KIT is a compact Class AB amplifier kit made to power the Alpine SWC-D84S subwoofer, not a general front and rear speaker amplifier. Its two channels give 2 x 75w into 2 ohm, each driving one of the subwoofer's voice coils, with a 20 Hz to 125 Hz low-pass output. A wired bass remote and wiring kit are included.
Who it suits
Owners of the Fiat Ducato III, Citroën Jumper II and Peugeot Boxer II who have fitted, or are fitting, the SWC-D84S and want it to deliver proper bass.
Our tech experts advise
The amplifier is small enough to fit in the compartment behind the cup-holder. It takes a high-level input from the head unit with remote turn-on, so no RCA outputs are needed. Mount the bass remote where the driver can reach it. Installation is priced per vehicle, so get in touch with your make, model and year.
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: Where does the SWA-150KIT amplifier fit?
A: The amplifier is compact and installs in the compartment behind the cup-holder. The wired bass remote knob is mounted in the dashboard.
Q: Do I need a separate wiring kit for the SWA-150KIT?
A: No. A wiring kit is included for the amplifier and radio adaptation. If your vehicle has an original wiring harness with a 52-pin connector, an additional ISO cable adapter is required, sold separately by third parties.
Q: Which vehicles is the SWA-150KIT for?
A: It is designed for the SWC-D84S subwoofer system in the Fiat Ducato III (250 and 290), Citroën Jumper II (250) and Peugeot Boxer II (250), and works with original and aftermarket radios.
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