Advertising Disclosure Component Subwoofers Comparison - August 2025
3 Best Component Subwoofers In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.8Exceptional | 2 Best Value  9.7Exceptional | 3  9.6Exceptional |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelTS-A30S4 30 cm / 12" A-Series Component Subwoofer, 1400 W MAX. 400 W NOM. | Model In Phase Car Audio USW10 300W 10" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium , Black | Model In Phase Car Audio XT-12 1400W 12" XT Series Peak Power Subwoofer, 2 Ohm Duel Voice Coil |
BrandPioneer | Brand In Phase | Brand In Phase |
Reviews | Reviews | Reviews |
Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
2In PhaseIn Phase Car Audio USW10 300W 10" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium , Black
Why we love it
Compact design fits easily under seats.
Improves bass without needing extra space.
Easy installation with provided wiring kit.
Main highlights- REMOTE CONTROL - Bass remote included (5 meters)
- HEAVY DUTY DURABLE CONSTRUCTION - 6" Aluminium coned sub bass driver housed in a DieCast Aluminium chassis
- COMPTABILITY - RCA and High Level inputs (will work with both OEM and Factory Fitted head units).
- COMPACT AND DISCRETE - Allowing you to install the USW10 anywhere within your vehicles Boot, Underseat, behind seat and foot wells. Dimensions 270mm (D) x 65mm (H)
- BRITISH DESIGN - All In Phase speakers are designed in the UK utilising over 30 years of audio experience to create a sound that is right for you
- ALUMINIUM CONED SUBWOOFER - 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
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9.6
3In Phase
In Phase Car Audio XT-12 1400W 12" XT Series Peak Power Subwoofer, 2 Ohm Duel Voice Coil
Main highlights- POWER OUTPUT - This sub is build for a perfect balance of SPL and SQ. So it offers a humble 400W RMS power output and 1400W Peak Power output.
- Included components: Car Subwoofer, Instruction Manual
- ENCLOUSURE TYPE SUBWOOFER - This sub is designed to be installed in an enclosure sealed or bass reflex enclosure will suffice. Open air installs can reduce power output.
- CONSTRUCTION - The In Phase XT Series subwoofers use a Kevlar Cone technology which is far more dense than traditional paper/polyprop cones allowing the sub to endure more power. The 90oz magnet keeps the sub flexing and pushing bass waves out to a higher standard.
- BRITSH DESIGN - All In Phase audio products are designed in the UK utilising over 30 years of audio experience to create a sound that is right for you.
- BASS REPRODUCTION - This In Phase sub offers superb bass reproduction using high quality materials. When using the right enclosure and amp, you could be hitting sub 40Hz!
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
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Consumer Reviews
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Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
