In Phase Car Audio USW300 300W Underseat Ultra Slim Compact Active Subwoofer...
In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier
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In stock. Express Delivery available with Amazon Prime.
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£99.00
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In Phase USW 300 Underseat Subwoofer
Overall Rating: 4.1 / 5 (average from multiple review sources, as of 1 Apr 2026)
Based on a total of 267,822 customer reviews from independent review platforms.
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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 267,822 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.
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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
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£99.99
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In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier
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£109.00
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In Phase USW300 Compact Under Seat 300W Active Amplified Powered Subwoofer Sub
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Mar 2026)
Based on a total of 22,693 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.
Based on a total of 22,693 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.
Will usually delivered within 2 - 5 working days of receiving cleared payment.
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£109.99
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In Phase Car Audio USW300 Underseat Subwoofer
Standard delivery in 3 working days
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£118.69
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In Phase Car Audio USW300 Underseat Subwoofer
Overall Rating: 3.2 / 5 (average from multiple review sources, as of 26 Mar 2026)
Based on a total of 43 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.
Based on a total of 43 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.
Standard delivery in 3 working days
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£118.69
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In Phase USW300 300W Underseat Ultra Slim Compact Active Subwoofer
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Mar 2026)
Based on a total of 22,693 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.
Based on a total of 22,693 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.
Will usually delivered within 3 - 5 working days of receiving cleared payment.
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£119.99
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USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Mar 2026)
Based on a total of 22,693 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.
Based on a total of 22,693 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.
Will usually delivered within 4 - 11 working days of receiving cleared payment.
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£120.78
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In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier
In stock. Express Delivery available with Amazon Prime.
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£125.51
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In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier - Details
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We have found 9 prices for In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier - 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 the product In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier is €£99.00to €£131.99 with a total of 9 offers.
- Payment methods: The online shop Amazon-marketplace.co.uk supports: Direct debit, Visa, Mastercard
- Delivery: The shortest delivery time is In stock. Express Delivery available with Amazon Prime. working days offered by Amazon-marketplace.co.uk.
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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
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