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In Phase Car Audio USW10 300W Underseat Subwoofer with Wiring Kit aUSW10
£124.99 Save £125.00  was:£249.99
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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 (72)

In Phase Car Audio USW10 300W Underseat Subwoofer with Wiring Kit and Bass Remote *FREE REVERSING AND DASH CAMERA*

Save: £125.00 (50%)  rrp: £249.99
5 Stars
72 Review(s) / write a review
Quickfind Code - 25817
Quick Summary:

Looking for a subwoofer that has all that bass pumping power but doesn’t need a lot of space? Look no further.

Condition: New

Save: £125.00 (50%)
rrp: £249.99
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  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Next Day Delivery available on all orders before 5pm Next Day Delivery available on all orders before 5pm
  • Easy Returns Easy Returns
  • 1 Year Easy Warranty 1 Year Easy Warranty

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Key Features

300W Underseat Subwoofer with Wiring Kit and Bass Remote *FREE REVERSING AND DASH CAMERA* - In Phase Car Audio USW10

Looking for a subwoofer that has all that bass pumping power but doesn’t need a lot of space? Look no further. 

With a built in amplifier powering an aluminium coned subwoofer and a max output of 300W the In Phase USW10 is a true pocket powerhouse of audio performance.

Measuring a mere 69mm in depth and 270mm in diameter, this unique unit will fit easily in just about any location in your vehicle while still packing a powerful bass punch. You may have to look a little harder to spot it but your search for a compact with impact is truly over.

Download image of In Phase Car Audio USW10 Click here for Image of In Phase Car Audio USW10
Technical Specification
  • Maximum Power Output 300W
  • Rated Power Uotput 100W
  • Output Impedance 4 Ohm + 4 Ohm
  • Crossover Frequency 50-100Hz
  • Size 270mm (D) 69mm (H)
  • Weight (inc accessories) 4.8kg
  • Phase Button (0-180 degrees)
  • Remote level Control (5m)
  • Aluminium Cone
  • Ultra Slim Design
  • Die Cast Aluminium Chassis
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Customer reviews

This shit BANGS!!!!
Sid on 16/09/2020 5 star rating

I've been into installing sounds systems for nearly 20 years now so I know what a subwoofer should sound like. At first I was skeptical as I wasn't sure if a unit of this size would reproduce the bass I am used to, but I'm glad I ordered it after listening to my wife that is. This inphase USW10 underseat subwoofer is definitely a wolf in sheep's clothing. This little thing packs a good punch and reproduces low frequencies really well. It won't shake you to the core but it will give you a good bass response which makes the music you're listening to sound fuller and well rounded. In conclusion, I will definitely recommend this Subwoofer.

Big Bass for your Buck
Nathan on 10/09/2020 5 star rating

Very impressive bass from such a small unit. fitted under the seat of my Ford Ranger perfectly and more than enough bottom end to liven up the in cab sound quality massively.

Not massive output but decent compared to others
Julian on 09/09/2020 3 star rating

for an underseat sub, it is great. decent output. however i am still craving a little more bass. Maybe I should get an enclosure sub in the boot?

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Questions/Answers About This Product
  • Question: 20 September 2020
    Car: Honda S2000 - 2001 >

    Hello, is this a plug and play ? And is it compatible with a Alpine cde 196 dab

    Thank you


    The USW10 can work with the CDE196DAB.

    Found Useful? Yes 

  • Question: 08 September 2020
    Car: Ford Transit - 1996-2005

    Would this work with my stock radio (tape player)? 😂
    REG is a 05 plate


    Yes, I recommend you use the below part.

    In Phase Speaker to Rca Converter adjustable output gain

    Found Useful? Yes 

  • Question: 08 September 2020
    Car: Honda Civic - 1999-2005

    Hi. Can I return this item if it doesn't live upto the hype in the comments section?

    Yes you can please use our returns procedure.

    Found Useful? Yes 

  • View All
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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