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In Phase Car Audio SXT1335 - 13cm shallow mount 3-way coaxial speakSXT1335
£34.99 Save £25.00  was:£59.99
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5 Stars (6)

In Phase Car Audio SXT1335 - 13cm shallow mount 3-way coaxial speakers - 230 watts

£34.99 Save £25.00 (42%)  was:£59.99
5 Stars
6 Review(s) / write a review
Quickfind Code - 32230
Quick Summary:

In Phase SXT 1335 are designed using new shallow mount technology allowing for simple installation. With peak power of upto 230 watts do not be afraid of putting a little on amp these speakers

Condition: New

Save £25.00 (42%)
rrp: £59.99
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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

13cm shallow mount 3way coaxial speakers 230 watts - In Phase Car Audio SXT1335

In Phase are proud to launch the newest series of SXT speakers, a no comprise design giving true performance from minimum amounts of power so great for those who needs speaker upgrades without adding amplifiers. Pushing the inventiveness of design In Phase have used an inverted magnet to make the new series shallow mounting dept, allowing for easy installation in most cars.
Using 3-Way speaker combination gives for translucent highs while our Poly-Mica coated cone with Butyl rubber surround produces effortless deep rich accurate bass. 

These speakers are an essential upgrade for any car audio system. Complete with discreet grills, speaker cable and all speaker fixings for a no stress installation.The perfect speaker upgrade in any car.

British Design

All In Phase SPX, XTC and SXT speakers are designed in the UK utilising over 30 years of audio experience to create a sound that is right for you.

Coaxial Design

Coaxial speakers or full range speakers as they are also known as offer higher quality sound than their dual cone counterparts. The tweet at the helm of the cone allows higher end frequencies (high notes) to be distributed out. This also does not require a separate crossover to fit them.

Poly-Mica coated cone, Butyl Rubber surround and Aluminium Chassis

Poly-Mica is a budget friendly, plastic speaker cone. When combined with Butyl Rubber surround, a high quality spider and decent shallow magnet, you have a budget friendly shallow mounted speaker which produces beautiful high notes and resonant bass notes.

Low to Medium Power

These speakers allow up to 35W RMS to each speaker and 230W peak power . Which is fairly high for shallow mounting 13cm speakers! These speakers can be run on your headunit or via a separate amplifier. These speakers are designed for tight spaced doors or areas. They do no require high power to produce beautiful sound.

These Car Audio Speakers Come in Pairs

Download image of In Phase Car Audio SXT1335 Click here for Image of In Phase Car Audio SXT1335
Technical Specification
  • Peak power handling 230 watts
  • RMS power 35 watts
  • 13cm poly mica coated cone
  • Butyl rubber surround
  • 1” high temperature voice coil
  • ½” PEI neodymium dome
  • ½” Piezo tweeter
  • 3-way coaxial mounting: swivel, flush and surface
  • Mounting depth 42mm
  • Cut-out diameter 118mm
  • Includes grills, cables, fixings and instructions
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Customer reviews

Vey good speakers
GARETH on 14/02/2022 5 star rating

Fitted easily to my Mini cooper with HK sound system. Much better sound than the factory speakers. Better than 12price and well worth the money.

Mini revival
IAN on 27/01/2022 5 star rating

Bought these to replace the blown cheapo Philips speakers in my ageing Mini Cooper R50.Absolute bargain sale price and they sound great.Delivery was also quicker than expected.Great job.

Got more than I thought
Dr on 10/05/2020 5 star rating

I did not expect alot from these little speakers, they are light and small.Once fitted in my wife's car she noticed the difference "hey my radio sounds so much better" They are really good little speakers.

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Questions/Answers About This Product
  • Question: 03 April 2022
    Car: Mitsubishi Colt - 2004 >

    Hi. Will these fit into Mitsubishi colt 07 plate 3door and do I need mounting brackets if so do you have them. Also the connections from standard wiring harness to the new speakers do you have these?


    You will need the below part for installation.
    As per the information, you do not need a different wiring harness to fit.

    CT25MT01 speaker Adaptors

    Found Useful? Yes 

  • Question: 21 December 2021
    Do these come with cover grill?


    Yes, it includes grills, cables, fixings and instructions.

    Found Useful? Yes 

  • Question: 22 April 2020
    Car: VW Polo - 2004 >

    SXT1035 In Phase
    Please confirm max and min mm between mounting holes (equivalent diameter).
    Car is not Polo but Morgan Not listed

    We have no idea! In a Polo you will need a 13cm, soeaker or speaker

    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