£77.11

About as cheap as it gets — within 5% of the all-time low it hit 1 month ago.

£77 today · all-time low £74 (Oct 2026) · usually £76

Polk Audio DB402 DB+ Series 4-inch Marine Coaxial Speakers

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 81 days · 81 data points (no recent data)

Historical
Generating forecast…
£100.39 £70.88 £77.32 £83.76 £90.19 £96.63 £103.07 12 August 2026 01 September 2026 21 September 2026 11 October 2026 31 October 2026
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Black, AA9402

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Price Distribution

Price distribution over 81 days • 3 price ranges

Days at Price
Current Price
23 days · current 14 days 44 days 0 11 22 33 44 £74-79 £84-90 £95-100 Days at Price

Price Analysis

Most common range: £95-100 (44 days, 54.3%)

Price range: £74 - £100

Price levels: 3 price ranges over 81 days

Description

Upgrade your audio experience with the Polk Audio DB402 DB+ Series 4-inch coaxial speakers. Designed to deliver high performance sound that goes beyond standard factory systems, these speakers provide a significant audio boost for any vehicle. Whether you are upgrading your car or out on the water, these speakers offer the signature Polk Audio quality you expect. Built for versatility, these speakers are perfect for cars, boats, and ATVs. The marine-certified design features an IP55 rating, making them resistant to water and dirt. They are specifically tested to handle salt-fog, UV rays, and humidity, ensuring they remain reliable in harsh environments. With a polypropylene and UV tolerant cone and waterproof inner and outer surrounds, these speakers are built to withstand the elements while maintaining clear sound quality. Installation is easy with a simple drop-in design that fits a variety of applications.

Key Features

High performance audio upgrade that delivers signature quality sound to replace or enhance standard OEM factory systems.

Marine certified with an IP55 rating for water and dirt resistance, making them ideal for use in boats and ATVs.

Built to withstand harsh environments with testing for salt-fog, UV exposure, and humidity.

Durable construction featuring a polypropylene and UV tolerant cone with waterproof inner and outer surrounds.

Simple drop-in installation makes it easy to upgrade audio in cars, boats, ATVs, and other vehicles.

Specific mounting dimensions include a 4.09 inch cut out diameter, 2 inch bottom mount, and 1.79 inch top mount.

Product Specifications

Model
AA9402
Colour
Black
Size
4 Inch
Pack Size
2 items
Domain
Amazon UK
Listed Since
29 April 2016

Barcode

No barcode data available

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