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Alpine Car Audio SWD-355 12" 30cm Active Car Subwoofer Bass BoxSWD-355
£279.99 Save £49.01  was:£329.00
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Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

5 Stars (1)

Alpine Car Audio SWD-355 12" 30cm Active Car Subwoofer Bass Box 550W

£279.99 Save £49.01 (15%)  was:£329.00
5 Stars
1 Review(s) / write a review
Quickfind Code - 40560
Quick Summary:

Excellent bass performance plus high power handling and efficiency of the 12" (30cm) SWE-1244E Subwoofer combined with the MRV-M250 Digital V-Power amplifiers for dependable, quality power.

Condition: New

Save £49.01 (15%)
rrp: £329.00
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  • Next Day Delivery available on all orders before 5pm Next Day Delivery available on all orders before 5pm

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Key Features

12" 30cm Active Car Subwoofer Bass Box 550W - Alpine Car Audio SWD-355

SWE-1244E - 12" (30cm) Subwoofer (4Ohm)
MRV-M250: Digital V-POWER Mono Amplifier
High Quality Bass Reflex Box
12” (30cm) SWE-1244E Subwoofer
650W Peak Power Handling
Heavy Duty Subwoofer Grill
Frequency Response: 30Hz - 200Hz

Built-in MRV-M250 Mono Amplifier
550W Max Power
150W RMS into 4Ohm @14,4V 1%THD
Adjustable Low Pass Filter, 50-400Hz @24dB/oct.
Variable Bass EQ (fc=50Hz), 0 to +12dB
RCA & Speaker Inputs

High Quality Bass Reflex Box
White Illuminated Alpine Logo (pulsing)
Removable Port Plug for Sealed and Vented Operation
All Plug Connectors (Easy Removal, no Tools Required)
Dimensions: 450mm (W) x 392mm (H) x 315mm / 422mm (D)

Remote Bass Level Control
12dB of linear Adjustment Range
5m Connection Cable included
Easy plug and play Installation   

Download image of Alpine Car Audio SWD-355 Click here for Image of Alpine Car Audio SWD-355
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Customer reviews

Alpine Active Subwoofer
Jamie on 06/11/2019 5 star rating

This was installed in my Audi by the ilford Team. What a huge difference this has made to my system. I am glad i listened to your staff and went with this Alpine Subwoofer. Installation was carried out while i waited. Very satisfied with the service and product. Highly recommend the ilford Team.

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Questions/Answers About This Product
  • Question: 10 July 2020
    Car: Audi A6 - 2004>

    Hi ,possible buy Alpine Car Audio Systems SWD-355 12" (30cm) Active Car Subwoofer Bass Box 550W ,I pay PayPal in UK,but I need shipping address to Poland,diferent at PayPal, Regards


    Aslong as you have changed the address in your Paypal before purchasing, you will be fine.

    Found Useful? Yes 

  • Question: 20 April 2020
    Car: VW Transporter - 2005 >

    Hi I’ve got the baby brother Of this (815) already fitted are the connections identical?
    Would I be able to power two additional speakers from the amp in this unit?
    Many thanks

    We dont know if the plugs are the same but they will certainly use the same cables. No the Amp will not power anything else.

    Found Useful? Yes 

  • Question: 28 December 2019
    Car: Ford Focus - 2004>

    Does this come with all the cables like the 8" does?


    Cables will need to be purchased separately.

    JWTRU81 8 Gauge 4 Channel 1800w Amplifier Wiring Kit

    Found Useful? Yes 

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Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

120 - 122 Alfreton Road, Nottingham, Nottinghamshire, NG7 3NR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181