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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 (3)
 In Phase XT8

In Phase XT8 1000 Watts Subwoofer

£64.99 Save £119.41 (65%)  was:£184.40
5 Stars
3 Review(s) / write a review
Quickfind Code - 22818
Save £119.41 (65%)
rrp: £184.40
This product has been discontinued

  • 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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Sorry, this product has been discountinued. please call us for alternatives

Key Features

1000 Watts Subwoofer - In Phase XT8

In Phase's award winning subwoofers provide a heady mix of high quality and raw power, like the best cars. Coming in ten inch, twelve inch and the mighty fifteen inch size, they have advanced design features. Double bottom suspension spiders for total linearity under massive high power drive. Cross woven tinsel leads to transfer power to the large diameter, four layer black aluminium voice coils and powerful heavy duty magnet structures make for an iron grip and melodic control of the bass line of your music. Seamless lightweight polypropylene composite cones with bottom yoke supports provide controlled high power output. The speaker wires connect via Platinum plated spring terminals for perfect power transfer. The polished and chromed chassis with genuine rubber top gaskets look superb, making them suitable for inverted mounting for show use. In Phase subwoofers; for those who want both superb bass quality and the power to impress.
  • 8” subwoofer
  • 500w RMS 1000w peak
  • single 4 Ω voice coil
  • 86dB 1w/1m
  • Black injected moulded cone
  • Woven-in tinsel leads for high power handling
  • Long throw coil
  • Chromed pressed steel chassis

Download image of In Phase XT8 Click here for Image of In Phase XT8
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Customer reviews

10/10 so happy with these
Luke on 27/04/2011 5 star rating

These look great, and sound even better!!!! I was a bit unsure when they was recommended to me cause i usually stick to things like sony cause they have a good reputation but In Phase are up there! From now on I know to look for In Phase if i want a reliable product! cheers!

Super Subs
Ronny on 09/08/2008 5 star rating

super subs sound really great with any amp, def reccommend

xt8 inphase sub
Anonymous on 26/12/2007 5 star rating

fantastic sounding bass! wired to a juice amp would recomend the two together. great sound and good but subtle bass! Great deliver by car audio centre

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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