Skip to content
inphase

In Phase

In Phase delivers powerful, high-quality car audio equipment designed for rich sound and reliable performance. From speakers and subwoofers to amps and accessories, upgrade your system with UK-engineered audio you can feel.

In Phase BX10SL 10" Sealed Subwoofer Enclosure

In Phase
Original price £139.99 GBP
Original price £139.99 GBP - Original price £139.99 GBP
Original price £139.99 GBP
£74.99 GBP - £109.99 GBP
£74.99 GBP - £109.99 GBP
Current price £74.99 GBP
In stock

10" Sealed Subwoofer Enclosure - In Phase BX10SL Choosing a bass box can be hard as not many people sell them and ideally they need to be built by ...

View full details
Original price £139.99 GBP
Original price £139.99 GBP - Original price £139.99 GBP
Original price £139.99 GBP
£74.99 GBP - £109.99 GBP
£74.99 GBP - £109.99 GBP
Current price £74.99 GBP
Save up to 46% Save %

In Phase BX12TREX 12" Slot Ported Subwoofer Enclosure For DB Audio TREX12

In Phase
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
In stock

Prepare to immerse yourself in deep, powerful bass with the In Phase BX12TREX Slot Ported Subwoofer Enclosure, meticulously crafted for the DB Aud...

View full details
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
Save 35% Save %

In Phase XTB-8A 600W Active Amplified Subwoofer Enclosure With Bass Remote

In Phase
Original price £299.99 GBP
Original price £299.99 GBP - Original price £299.99 GBP
Original price £299.99 GBP
Current price £149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
In stock

In-Phase XTB-8A 600W Active Amplified Subwoofer Enclosure The In Phase XTB-8A 600W Active Amplified Subwoofer Enclosure is your ticket to elevating...

View full details
Original price £299.99 GBP
Original price £299.99 GBP - Original price £299.99 GBP
Original price £299.99 GBP
Current price £149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
Save 50% Save %

In Phase IP3RBULK Oxygen Free RCA Lead 3 metres

In Phase
Original price £29.99 GBP
Original price £29.99 GBP - Original price £29.99 GBP
Original price £29.99 GBP
Current price £19.99 GBP
£19.99 GBP - £19.99 GBP
Current price £19.99 GBP
In stock

Key Features: Clear blue RCA cable Oxygen free RCA cable Twisted pair balanced cable to minimise electromagnetic interference and crosstalk Lengt...

View full details
Original price £29.99 GBP
Original price £29.99 GBP - Original price £29.99 GBP
Original price £29.99 GBP
Current price £19.99 GBP
£19.99 GBP - £19.99 GBP
Current price £19.99 GBP
Save 33% Save %

In Phase SXT5735 Shallow Mount 5"x7" 3-Way Coaxial Speaker System

In Phase
Original price £59.99 GBP
Original price £59.99 GBP - Original price £59.99 GBP
Original price £59.99 GBP
Current price £49.99 GBP
£49.99 GBP - £49.99 GBP
Current price £49.99 GBP
In stock

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...

View full details
Original price £59.99 GBP
Original price £59.99 GBP - Original price £59.99 GBP
Original price £59.99 GBP
Current price £49.99 GBP
£49.99 GBP - £49.99 GBP
Current price £49.99 GBP
Save 17% Save %

In Phase USW300 - 300W Underseat Compact Subwoofer

In Phase
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £99.95 GBP
£99.95 GBP - £99.95 GBP
Current price £99.95 GBP
In stock

The key thing about the In Phase USW 300 is the performance, the little active woofer really packs a punch, the bass response is amazing, you reall...

View full details
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £99.95 GBP
£99.95 GBP - £99.95 GBP
Current price £99.95 GBP
Save 50% Save %

In Phase XTC17.2 17cm 250 Watts 2-Way Rotary Tweeter Car Door/Shelf Speakers

In Phase
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £44.99 GBP
£44.99 GBP - £44.99 GBP
Current price £44.99 GBP
In stock

Get ready for a seriously upgraded sound quality – even when used with a factory fitted stereo. The In Phase XTC 17.2 speaker system delivers 250 w...

View full details
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £44.99 GBP
£44.99 GBP - £44.99 GBP
Current price £44.99 GBP
Save 55% Save %

In Phase XT-12PRO Kevlar Cone 2Ω Dual Voice Coil 2400W Peak Power Subwoofer

In Phase
Original price £199.00 GBP
Original price £199.00 GBP - Original price £199.00 GBP
Original price £199.00 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
In stock

The company In Phase has introduced a new series of professional subwoofers designed by a team of engineers in Britain. The absolutely the best sub...

View full details
Original price £199.00 GBP
Original price £199.00 GBP - Original price £199.00 GBP
Original price £199.00 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
Save 35% Save %

In Phase XT-12D4 12" 1400W Dual 4Ω Kevlar Cone Subwoofer

In Phase
Original price £149.00 GBP
Original price £149.00 GBP - Original price £149.00 GBP
Original price £149.00 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
In stock

The company In Phase has introduced a new series of professional subwoofers designed by a team of engineers in Britain. The absolutely the best sub...

View full details
Original price £149.00 GBP
Original price £149.00 GBP - Original price £149.00 GBP
Original price £149.00 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
Save 33% Save %

In Phase XT-12D2 Kevlar Cone 1Ω Dual Voice Coil 1400W Peak Power Subwoofer

In Phase
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
In stock

The company In Phase has introduced a new series of professional subwoofers designed by a team of engineers in Britain. The absolutely the best sub...

View full details
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
Save 50% Save %

In Phase XT-10D4 10" 1200W Dual 2Ω Kevlar Cone Subwoofer

In Phase
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £89.99 GBP
£89.99 GBP - £89.99 GBP
Current price £89.99 GBP
In stock

The company In Phase has introduced a new series of professional subwoofers designed by a team of engineers in Britain. The absolutely the best sub...

View full details
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £89.99 GBP
£89.99 GBP - £89.99 GBP
Current price £89.99 GBP
Save 10% Save %

In Phase XT-10D2 10" 1200W Dual 1Ω Kevlar Cone Subwoofer

In Phase
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £89.99 GBP
£89.99 GBP - £89.99 GBP
Current price £89.99 GBP
In stock

The company In Phase has introduced a new series of professional subwoofers designed by a team of engineers in Britain. The absolutely the best sub...

View full details
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £89.99 GBP
£89.99 GBP - £89.99 GBP
Current price £89.99 GBP
Save 10% Save %

In Phase XTC-180VW 250W 2-Way Component Door Speakers with Tweeters for Volkswagen

In Phase
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
In stock

Perfectly balanced to handle high power amplifiers whilst delivering peak audio performance, the In Phase XTC-180VW is the natural choice for the ...

View full details
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
Save 33% Save %

In Phase XTC5CX 5.25" 250W 2-Way Component Car Door Speakers with Tweeters & Grills

In Phase
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £60.50 GBP
£60.50 GBP - £60.50 GBP
Current price £60.50 GBP
In stock

Hear your music the way it was meant to be heard. With independent woofers and tweeters, the exciting new In Phase XTC5CX 2-way 13cm component spea...

View full details
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £60.50 GBP
£60.50 GBP - £60.50 GBP
Current price £60.50 GBP
Save 60% Save %

In Phase XT-8PRO High-Power 1200W Subwoofer

In Phase
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
In stock

The In Phase XT-8PRO 1200W 8" Subwoofer delivers deep, punchy and controlled bass with premium build quality. Designed for high-performance car aud...

View full details
Original price £149.99 GBP
Original price £149.99 GBP - Original price £149.99 GBP
Original price £149.99 GBP
Current price £129.99 GBP
£129.99 GBP - £129.99 GBP
Current price £129.99 GBP
Save 13% Save %

In Phase BX26XT Double 6" High Quality Ported Subwoofer Enclosure with Black Carpet For XT-6

In Phase
Original price £159.99 GBP
Original price £159.99 GBP - Original price £159.99 GBP
Original price £159.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
In stock

Choosing a bass box can be hard as not many people sell them and ideally they need to be built by people who know subwoofer parameters, box design ...

View full details
Original price £159.99 GBP
Original price £159.99 GBP - Original price £159.99 GBP
Original price £159.99 GBP
Current price £99.99 GBP
£99.99 GBP - £99.99 GBP
Current price £99.99 GBP
Save 38% Save %

In Phase BX12XTNT 12" Slot Ported Subwoofer Enclosure For DB Audio Xtinct12

In Phase
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
In stock

Experience thunderous bass and uncompromising performance with the In Phase BX12XTNT Slot Ported Subwoofer Enclosure, meticulously crafted for the...

View full details
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP

In Phase XT-6 800W Peak Power 6.5" Kevlar Cone 2 Ohm Dual Voice Coil Subwoofer

In Phase
Original price £129.99 GBP
Original price £129.99 GBP - Original price £129.99 GBP
Original price £129.99 GBP
£79.99 GBP - £269.00 GBP
£79.99 GBP - £269.00 GBP
Current price £79.99 GBP
In stock

In Phase XT-6 800W Peak Power 6.5" Kevlar Cone 2 Ohm Dual Voice Coil Subwoofer Experience deep and powerful bass performance with the In Phase XT-6...

View full details
Original price £129.99 GBP
Original price £129.99 GBP - Original price £129.99 GBP
Original price £129.99 GBP
£79.99 GBP - £269.00 GBP
£79.99 GBP - £269.00 GBP
Current price £79.99 GBP
Save up to 38% Save %

In Phase SXT6435 - 4x6" Neodymium 3-Way Coaxial Speakers - 200 Watts

In Phase
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £44.99 GBP
£44.99 GBP - £44.99 GBP
Current price £44.99 GBP
In stock

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...

View full details
Original price £99.99 GBP
Original price £99.99 GBP - Original price £99.99 GBP
Original price £99.99 GBP
Current price £44.99 GBP
£44.99 GBP - £44.99 GBP
Current price £44.99 GBP
Save 55% Save %

In Phase BX46XT QUAD 6" Ported Subwoofer Enclosure for FOUR In Phase XT-6 Subwoofers

In Phase
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
In stock

Prepare to unleash a wall of bass with the In Phase BX46XT QUAD 6" Ported Subwoofer Enclosure, meticulously engineered to house four In Phase XT-6 ...

View full details
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP

In Phase BX28XT Double 8" Ported Subwoofer Enclosure for TWO In Phase XT-8 Subwoofers

In Phase
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £129.00 GBP
£129.00 GBP - £129.00 GBP
Current price £129.00 GBP
In stock

Get ready to double the bass impact with the In Phase BX28XT Double 8" Ported Subwoofer Enclosure, tailor-made to house two In Phase XT-8 subwoofer...

View full details
Original price £199.99 GBP
Original price £199.99 GBP - Original price £199.99 GBP
Original price £199.99 GBP
Current price £129.00 GBP
£129.00 GBP - £129.00 GBP
Current price £129.00 GBP
Save 35% Save %

In Phase BX210XT Double 10" Ported Subwoofer Enclosure for TWO In Phase XT-10

In Phase
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
In stock

Experience thunderous bass and uncompromising performance with the In Phase BX210XT Double 10" Ported Subwoofer Enclosure, meticulously crafted to ...

View full details
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP

In Phase BX12XT 12" Slot Ported Subwoofer Enclosure For In Phase XT-12

In Phase
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP
In stock

Elevate your car audio experience with the In Phase BX12XT Slot Ported Subwoofer Enclosure, custom-designed for the In Phase XT-12 subwoofer. Engi...

View full details
Original price £149.99 GBP - Original price £149.99 GBP
Original price
£149.99 GBP
£149.99 GBP - £149.99 GBP
Current price £149.99 GBP

In Phase BX10XT 10" Slot Ported Subwoofer Enclosure for In Phase XT-10 (Box only)

In Phase
Original price £129.00 GBP - Original price £129.00 GBP
Original price
£129.00 GBP
£129.00 GBP - £129.00 GBP
Current price £129.00 GBP
In stock

Experience deep, powerful bass with the In Phase BX10XT Slot Ported Subwoofer Enclosure, tailored specifically for the In Phase XT-10 subwoofer. En...

View full details
Original price £129.00 GBP - Original price £129.00 GBP
Original price
£129.00 GBP
£129.00 GBP - £129.00 GBP
Current price £129.00 GBP

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare