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Kenwood KSC-SW11 150W active underseat subwooferKSC-SW11
£104.99 Save £139.08  was:£244.07
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Everything you need to fit it yourself at home

Only £30.00 

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Only £50.00 

5 Stars (8)

Kenwood KSC-SW11 150W active underseat subwoofer

£104.99 Save £139.08 (57%)  was:£244.07
5 Stars
8 Review(s) / write a review
Quickfind Code - 31239
Quick Summary:

kenwood slim power full underseat subwoofer

Save £139.08 (57%)
rrp: £244.07
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On Orders Over £500

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Next Day Delivery available on all order before 5pm Next Day Delivery available on all order before 5pm
  • Easy Returns Easy Returns
  • 1 Year Easy Warranty 1 Year Easy Warranty

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Key Features

150W active underseat subwoofer - Kenwood KSC-SW11

Key Features
  • 150W peak power
  • Powered subwoofer
  • Aluminum Die-cast frame
  • Noise-less sound
  • Wired remote (Level/Freq./phase control)
  • Line(RCA) + speaker level input
Speaker Features
  • Speaker System Active subwoofer system
  • Peak Input Power 150W
  • Speaker Size 200 x 120 mm
  • Magnet Type Ferrit
  • Wired remote included 
  • Amplifier Built-in
  • Enclosure size (BxHxD) 190 x 70 x 280 mm
  • Enclosure net weight 2.8 kg
Amplifier Features
  • Maximum power output 150W
  • Low-pass Filter 
  • Phase inverter 0°(Normal) / 180°(Reverse) 
  • Power Indicator 
  • Line in RCA
  • Speaker level Input 
  • Chassis Aluminum Die-cast
  • DC cable Supplied 
Speaker/woofer Specifications
  • Peak Input Power 150W
  • Steel Speaker Basket 
  • Rubber Speaker Surround 
Amplifier Specifications
  • Maximum power output (4Ω) 150W x 1
  • Low-pass Filter 50~125 Hz
  • Frequency response (+0dB, -3dB) 35Hz ~ 150Hz
  • Operating voltage 14.4V (11V ~ 16V allowable)
  • Maximum current consumption 8.5A

Download image of Kenwood KSC-SW11 Click here for Image of Kenwood KSC-SW11
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Customer reviews

Excellent hidden sub
Jason Croysdill on 12/01/2018 5 star rating

First, delivery from the company was very quick, and very well packaged. Faultless. Now for the review on the sub. The first thing I noticed on unboxing this was how heavy and well built it was. It's pretty much all metal so a big thumbs up for build quality. I installed this in a 2006 Citroen xsara picasso. After removing the underseat tray under the drivers seat (passenger seat has the car battery underneath that seat), I set about the install. Now I was going to pay to have this installed as I have not dabbled with this sort of thing since my late teens, but I needed of worried. Hardest part about this is routing the cables from behind the stereo to the actual sub, however please note you will need to purchase some RCA cables if you don't want to splice into the speaker wires. It's simple connect to power (I used spare lead at back of CD player) connect ignition wire, connect RCA leads and then ground it to a suitable point on the car as close to the sub as possible. So all that was done and the sub was set up, time to test. WOW......this just makes everything sound so much better, I have this set at under halfway on volume on the sub and it is MORE than adequate. It packs so much more bass than I thought it would. It is not boy racer loud, but that's not what I wanted, but it is loud!!! And I definitely feel it through my seat while driving. If you don't have space or want a big sub in your boot, you will not go wrong for this price. Definitely no regrets on buying this at all.

Todd on 17/05/2017 5 star rating

Boom this box is Peng man, so loud its kicks some serious bass, love it! So much better than my Vibe one!

Not bad
CHLOEMOLLOSON on 24/05/2016 4 star rating

decent deep bass which rattles the panels in my Seat Arosa at full volume. I've turned it down and balanced it with my speakers so it does not overpower the rest of the music. Not stupid powerful, if you're after something that will echo across a car park you will want something bigger, but it works well for me. Comes with a bullet connector on the power cable which isn't ideal, we cut it off and stripped the wire back when fitting it to my battery.

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Questions/Answers About This Product
  • Question: 23 February 2018
    Car: Mazda MX-5 - 2006>

    Hi, I won't have space to fit this under my seat in the mx-5, but perhaps behind it. Do you have experience fitting subs like this to an MX-5 NC 2011 with Bose speaker pack? Thanks.

    Hi James

    Please contact your local store regarding installation.

    Found Useful? Yes 

  • Question: 28 January 2018
    Car: Peugeot Expert - 2007>

    Hi, my vehicle is actually a Peugeot partner 2013 but it was not listed. I was wondering wether I should go for the Kenwood sw11 or the vibe optisound auto 8.

    Many thanks

    Hi Ryan

    We would suggest the below listed under seat subwoofer.

    USW10 300W active underseat subwoofer

    Found Useful? Yes 

  • Question: 28 January 2018
    Car: Chevrolet Captiva - 2006>


    Is the ksc-sw11 available in your ilford store and would it be the same price if i buy it in store?

    How much would it be for fitting?



    The KSC-SW11 is available in Ilford store. It would be the same price.

    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:

542 546 Mansfield Road, Sherwood NG5 2FR
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