In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier

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

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 45,568 customer reviews from independent review platforms.

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

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Cheapest Total Price
In stock. Express Delivery available with Amazon Prime.
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£99.00
Free Delivery

In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 45,568 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.
In stock
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£109.00
Free Delivery

In Phase USW300 300W Underseat Ultra Slim Compact Active Subwoofer System

Overall Rating: 4.0 / 5 (average from multiple review sources, as of 13 Feb 2026)
Based on a total of 2,397 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.
2-3 working days
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£119.99
Free Delivery

In Phase Car Audio USW300 Underseat Subwoofer

Overall Rating: 2.1 / 5 (average from multiple review sources, as of 11 Feb 2026)
Based on a total of 45 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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£123.90
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In Phase Car Audio USW300 Underseat Subwoofer

Overall Rating: 3.2 / 5 (average from multiple review sources, as of 9 Feb 2026)
Based on a total of 42 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
Visa Visa Mastercard Mastercard
£123.90
Free Delivery

In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 45,568 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.
In stock. Express Delivery available with Amazon Prime.
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£125.62
Free Delivery

In Phase USW 300 Underseat Subwoofer

Overall Rating: 4.1 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 264,438 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
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£129.99
Free Delivery

IN PHASE USW300 Car Subwoofer - Black, Black

Overall Rating: 4.3 / 5 (average from multiple review sources, as of 9 Feb 2026)
Based on a total of 503,613 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 Visa Visa Mastercard Mastercard
£130.00
Free Delivery

In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 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 1 - 2 working days of receiving cleared payment.
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£132.99
Free Delivery

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In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier - Details

▶ Finding you the best price!

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 €£132.99 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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In Phase USW300 300W Underseat Subwoofer - Active Car Subwoofer with Built-in Amplifier

Cheapest offer

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 Aluminium coned subwoofer - 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, Undersea, behind seat and foot wells
£99.00
In stock. Express Delivery available with Amazon Prime.
Amazon-marketplace.co.uk
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