In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK

In Phase Car Audio USW300 300W Underseat Ultra Slim Compact Active Subwoofer...

In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK

Overall Rating: 4.2 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 26,737 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
In stock
Direct debit Direct debit Mastercard Mastercard Visa Visa
£99.00
Free Delivery

In Phase USW 300 Underseat Subwoofer

Overall Rating: 4.2 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 365,606 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
3 to 5 days
PayPal PayPal Mastercard Mastercard Visa Visa
£129.99
Free Delivery

IN PHASE USW300 Car Subwoofer - Black, Black

Overall Rating: 4.5 / 5 (average from multiple review sources, as of 19 Oct 2026)
Based on a total of 4,602,226 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
3-5 working days
PayPal PayPal Mastercard Mastercard Visa Visa
£130.00
Free Delivery
In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK

Cheapest offer

Subwoofer for Car - With a built in amplifier, max output of 300 W and 150 W RMS, the In Phase USW300 is a true pocket powerhouse of audio performance. Coned Aluminium Active Subwoofer Car - Aluminium Cones are light in weight and can be really stiff, but they are really robust cones that rarely go wrong. This sub has a damping material built into its cone and spider to ensure a rattle-free performance and deep bass Heavy duty durable construction - Die Cast Aluminium Chassis - no plastic structure here. 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. Compact and discrete - Allowing to install the USW300 anywhere within vehicles boot, under seats, behind seats or in the foot well Trusted Brand - In Phase is a UK based brand, our team currently has over 500 years of audio research and development experience, creating quality products from premium material that our customer deserve, including, car audio speakers & subwoofers.
£99.00
In stock
Amazon-marketplace.co.uk

🤖 Ask ChatGPT

In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK - Details

▶ Finding you the best price!

We have found 3 prices for In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.

In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK - Price Information

  • Cheapest price: £99.00
  • The cheapest price is offered by Amazon-marketplace.co.uk. You can order the product there.
  • The price range for In Phase USW300 Underseat Subwoofer | Car Subwoofer with Built in Amplifier | 300W Active Subwoofer Car | Compact Design Under Seat Subwoofer Car | Heavy Duty Durable Construction | Designed in the UK is £99.00 to £130.00, with a total of 3 offers.
  • Payment methods: The online shop Amazon-marketplace.co.uk supports: Direct debit, Mastercard, Visa
  • Delivery: The shortest delivery time is In stock working days offered by Amazon-marketplace.co.uk.
Don't forget your voucher code: