Top 9 Underseat Active Subwoofer UK – Car Component Subwoofers

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1. KENWOOD

Kenwood KSC-SW11 150W Underseat Active Subwoofer with Passive Radiator

KENWOOD - Aluminium die cast frame. Speaker level input option. 150 watts peak power handling. Wired remote control level/Freq/Phase control.
BrandKENWOOD
ManufacturerKENWOOD
Height6.99 cm (2.75 Inches)
Length27.94 cm (11 Inches)
Weight2.8 kg (6.17 Pounds)
Width19.05 cm (7.5 Inches)
Part Number21549898
Model21549898
Warranty1 Year

2. In Phase

Black, In Phase Car Audio USW10 300W 10" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium

In Phase - Heavy duty durable construction - 6" Aluminium coned sub bass driver housed in a DieCast Aluminium chassis. Dimensions 270mm D x 65mm H. Remote control - Bass remote included 5 meters.

Comptability - rca and high level inputs will work with both OEM and Factory Fitted head units. 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. Compact and discrete - allowing you to install the USW10 anywhere within your vehicles Boot, Underseat, behind seat and foot wells. 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.
BrandIn Phase
ManufacturerIN PHASE Audio
Height69
Length270
Weight3.6
Width270
Part NumberUSW10
ModelUSW10
Warranty1 Year

3. In Phase

Die-Cast Aluminium, In Phase Car Audio USW300 300W Underseat Ultra Slim Compact Active Subwoofer System

In Phase - Compact and discrete - allowing to install the USW300 anywhere within vehicles Boot, Undersea, behind seat and foot wells. Heavy duty durable construction - die cast aluminium Chassis - no plastic structure here.

This sub has a damping material built into its cone and spider to ensure a rattle-free performance and deep bass. The metal body is part of a secure and rigid structure, no flexing body when the unit is in full power, this also helps with bass output. Aluminium coned subwoofer - aluminium cones are light in weight and can be really stiff, but they are really robust cones that rarely go wrong. Rich powerful base - with a built in amplifier, max output of 300 W and 130 W RMS, the In Phase USW300 is a true pocket powerhouse of audio performance.
BrandIn Phase
ManufacturerIn Phase
Part NumberUSW300
ModelUSW300
Warranty5 year

4. In Phase

In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium

In Phase - 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.

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. 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.
BrandIn Phase
ManufacturerIn Phase
Part NumberUSW12
ModelUSW12
Warranty2 year manufacturer

5. Alpine

8" Size, Alpine SWE-1200 Active Amplified Underseat Subwoofer Enclosure, Black

Alpine - 150watt built In Amplifier. Variable Low Pass Filter. Super Shallow Structure. Wired Remote Control. Gain Adjustment.
BrandAlpine
ManufacturerAlpine
Height20 cm (7.87 Inches)
Length20 cm (7.87 Inches)
Weight1 kg (2.2 Pounds)
Width20 cm (7.87 Inches)
Part NumberSWE-1200
ModelSWE-1200
Warranty2 years

6. Rockville

Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub

Rockville - Low pass filter: 50hz - 150hz. Input sensitivity, High level: 1. 0v. Dimensions l x w x h: 11. 4" x 8. 3" x 2. 8" inches. Subwoofer Level Remote Control. Sensitivity: 90dB @ 1w / 1m.

Signal to noise Ratio: >90dB. Rockville ss8p 8" 400w slim under-Seat Active Powered Car/Truck Subwoofer Sub. Overload Protection Circuit. Thd: < 04%. Peak power handling: 400 Watts. Built in subsonic filter @ 20Hz. Pwm mosfet power supply. Adjustable Input Sensitivity. Low level rca input. Phase switch: 0° or 180°. Heavy duty mounting feet. Specifications: peak power 400 watts. Green power/Red Protect LED. High level inputs with auto turn-On Technology. Bass boost: 0 - 12db @ 45hz. Frequency response: 20Hz - 150Hz. Rms power: 100 watts. Enclosure is made out of cast aluminum which stays cool at all times.
BrandRockville
ManufacturerRockville
Height7.11 cm (2.8 Inches)
Length35.81 cm (14.1 Inches)
Weight4.08 kg (9 Pounds)
Width21.08 cm (8.3 Inches)
Part NumberSS8P
ModelSS8P

7. In Phase

In Phase USW12 Dual underseat active subwoofer system 600 watts with bass and phase wired remote control

In Phase - It can be placed under the seat and you can already be sure it will not have any damage, allowing you to sit back and enjoy superior sound quality.
BrandIn Phase
ManufacturerInphase
Weight5 kg (11.02 Pounds)
Part NumberUSW8
ModelUSW8

8. CHENQIAN

Car Subwoofer, Black 600W Under-Seat Active Subwoofer Speaker Universal Car Audio Amplifier

CHENQIAN - Premium car subwoofer, it has high power and low distortion. High temperature resistant coil, safer and dependable for using. Black paint stainless steel mesh, antirust and not easy to deform. Multiple heat dissipation holes are provided on both sides, ensure heat dissipation and avoid speaker burn. Ultra-thin body, installed under the seat, provides better effect.
BrandCHENQIAN
ManufacturerCHENQIAN
Height0 cm (0 Inches)
Length0 cm (0 Inches)
Weight5.42 kg (11.95 Pounds)
Width0 cm (0 Inches)
Part NumberCHENQIANatv4e5gyp0

9. OUKANING

12V 600W Car Audio Stainless Steel Ultra-Thin Car Underseat Active Subwoofer

OUKANING - 8 inch high performance active subwoofer, excellent low frequency performance, pure music output, strong sound effect. Horn protection cover made of black painted stainless steel mesh, high temperature resistant coil, in addition, anti-rust and not easy to deform, safer to use. 1. 4mm thick mesh material, strong compressive strength. 600w bass slim under-Seat Powered Car Subwoofer. Pu leather shell can effectively reduce vibration and noise, for assured strength and stability.
BrandOUKANING
ManufacturerDY-Legend
Height34.5 cm (13.58 Inches)
Length6.8 cm (2.68 Inches)
Width26 cm (10.24 Inches)
Part NumberLegend-469