4.4/5 Rating

3K+ Reviews

Car Subwoofers

(236 products)

Shop car subwoofers for your vehicle, including options for every setup from a compact underseat sub to a high-output boot-mounted system. Choose from underseat, active, enclosed, and component subwoofers for cars, with leading brands including Focal, JL Audio, In Phase, Kicker, and Kenwood. Fast UK delivery is available across the range. Use the filters below to browse by size, fitting type, power, or brand to find the right match for any system.

View as

Shop Car Subwoofers by Type

Not sure which type suits your vehicle? Browse by subwoofer style to find the right option for your car.

Underseat Subwoofers

An underseat subwoofer for cars is a slim, compact active unit designed to fit neatly beneath a car seat, delivering enhanced bass without taking up boot space. It is an ideal solution for smaller vehicles or drivers seeking improved low-end performance with minimal impact on installation. Browse our full range of underseat subwoofers to find a model that suits your vehicle.

Sub and Amp Packages

Sub and amp packages pair a car subwoofer with an amplifier in a single bundle, taking the guesswork out of selecting compatible components and ensuring the two units work efficiently together from day one. Browse our sub and amp packages for a straightforward route to improved bass performance.

Active and Enclosed Subwoofers

Enclosed subwoofers arrive pre-loaded in a purpose-built box ready to install, while active models go a step further by including a built-in amplifier for a simpler all-in-one upgrade. Both options reduce the number of separate components needed. Explore our range of enclosed subwoofers to find the right fit for your boot space and budget.

Subwoofer Boxes

Empty and ported subwoofer boxes allow you to build a custom bass setup around your preferred driver, giving you control over enclosure volume and port tuning. The design of the box directly affects sound quality, output level, and bass character. Explore subwoofer boxes for cars to find the right enclosure for your build.

Why Choose a Car Subwoofer?

A dedicated subwoofer handles low frequencies that standard speakers cannot, improving bass depth and overall sound quality in your vehicle.

Deeper, Fuller Bass

A good subwoofer is designed specifically to reproduce low frequencies, delivering bass that door speakers simply cannot produce on their own. The result is a richer, more detailed soundstage that makes a noticeable difference across all music genres.

Cleaner Sound at Volume

Passing bass frequencies to a subwoofer reduces the strain on your main speakers, allowing them to handle mid and high frequencies more accurately. This helps maintain cleaner, clearer car audio at higher volumes and reduces the risk of distortion.

Easy Upgrade Options

Active and underseat subwoofers are designed for straightforward installation, making it easier to add enhanced bass in smaller vehicles or where boot space is at a premium. They are a practical entry point for drivers who want a better sound system without a complex build.

 FAQ about Car Subwoofers

How to choose a subwoofer for your car?

Consider your available space, the power output of your existing or planned amplifier, and whether you prefer a pre-built active or enclosed unit over a component sub that needs a separate enclosure and amplifier.

Do I need an amp for a car subwoofer?

Most passive subwoofers require a separate amplifier to deliver enough power for proper bass output. Active subwoofers and underseat high-performance models include a built-in amplifier, so no additional unit is needed.

What is a car subwoofer with a built-in amplifier?

A car subwoofer with a built-in amplifier, also called an active subwoofer, combines the driver and amplifier in a single enclosure, simplifying installation and removing the need to source and wire a separate amp.

What size car subwoofer should I choose?

Smaller subwoofers, typically 8 to 10 inches, suit compact spaces and favour tighter, more accurate bass. Larger 12- to 15-inch units produce greater output and deeper low frequencies, making them better suited to larger vehicles or high-volume listening.