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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)
Enclosed Subwoofers In Phase XTB08A

In Phase XTB08A 1000Watt Active Enclosure

£149.49 Save £80.50 (35%)  was:£229.99
5 Stars
1 Review(s) / write a review
Quickfind Code - 23035
Save £80.50 (35%)
rrp: £229.99
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. We recommend the following product.

In Phase XTB08R 1000W 8" subwoofer in custom enclosure
In Phase XTB08R

Key Features

1000Watt Active Enclosure - In Phase XTB08A

Inphase XTB08A Features :

  • 8" Subwoofer 4th order enclosure
  • Power: 1000watts
  • Right aerodynamic port
  • Aluminum linear earo venting
  • Double spider
  • Flush fitted
  • Leather feel paint finish
  • Frequency response: 35Hz - 250Hz
  • Sensitivity: 93dB
  • Impendance: 4ohm
  • Acoustic Damping
  • Internally braced for bass enhancement
  • 18mm high density marine MDF
  • Dimensions; (H x W x D): 370mm x 375mm x 244mm
  • 2 peace port
  • 32mm baffle
  • Hand finished

Download image of In Phase XTB08A Click here for Image of In Phase XTB08A
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Customer reviews

Inpahse 8" amped box
smart4two on 02/02/2010 5 star rating

Wanted to up the bass levels in my Smart For Two and a mate rcommended the inphase boxes, he's got the 12" one in his BM and he loves it. Followed his advice and ordered one online, fitted it yesterday and its worth every penny and more! Even though its only and 8" sub and 1000w max it feels like my smart is gonna pop when i turn it up-my mate says it'll sound even better when its "run in"-what ever that is! Looks really good too, weighs loads for a little box, build quality seems really good-better than my car!

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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