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Your cart is empty.Polk Audio DB402 4" 2-Way Coaxial Speaker for Car & Marine The Polk Audio DB402 2-Way Speaker features a 4" polypropylene woofer cone and a 3/4" silk dome tweeter with a built-in crossover, that delivers smooth and precise sound. The speakers' Dynamic Balance technology uses laser imaging to reduce resonance, resulting in a wide response and low distortion. This DB+ Series speaker is versatile, with 4/2 hole compatibility and mounting hardware included. The grilles have a bold design that adds a touch of style to your vehicle's interior, making them a good choice for those who want to customize their installation. Polk Audio tests the DB+ marine speakers rigorously for environmental effects like sun, moisture, and extreme temperature changes. As a result, they're even certified for marine applications, making them a great choice for your boat. Polk Audio's DB+ Series subwoofers are a great value, delivering smooth, powerful bass. So, if you want to upgrade your sound system without breaking the bank, the DB+ series speakers are an excellent option. Polk's advanced technology and engineering bring out the best in class audio with powerful speaker series, smart speakers, and soundbars, allowing you to sit back, relax and listen with your heart.
Barry B.
Reviewed in the United States on February 12, 2025
I used these to replace the 3.5 inch speakers in the rear pillars of my 2018 Ford Explorer. I wound up cutting the plastic basket off of the factory speakers, then trimming and sanding down the plastic gasket of the 3.5 inch to mount these in the factory space. They sound excellent, being fed by an amp that puts out about 75 watts to each speaker. The fit was very tight, but I wanted to keep with Polk Audio since I have swapped out all of the door speakers and tweeters with Polk already. Polk Audio does not currently make a 3.5 inch speaker so I took my chances with these and I made it work out.
Tyler J.
Reviewed in the United States on September 18, 2024
They're pretty good speakers, but you need to put a bass choke on them, or else you're going to blow them up because they can't handle the bass.
Jonathan Hutson
Reviewed in the United States on September 12, 2024
I bought these to add to the saddle bags of my cruiser and I have nothing but great things to say. These speakers sound amazing and were incredibly easy to mount and wire. Once they were installed they make some noise. I pretty much have surround sound even when I am riding. They are strongly built and made to last. There is no cracking sounds or issues when the stereo is turned all the way up. They have a nice deep sound and the bass is clear as crystal. If you were considering buying these puppies, go ahead and get them.
Jared Smith
Reviewed in the United States on August 9, 2024
I purchased these speakers to replace the ones on my motorcycle. They were a direct replacement and sound amazing. This bike never sounded this good from the factory. Very satisfied and would recommend these to anyone looking to replace 4” speakers.
David Dupuis
Reviewed in Canada on August 20, 2024
I thought they were great sound for the money , good mid-range and bass was good
Bryant Wong
Reviewed in the United States on May 24, 2024
Upgraded the speakers in my Ford Bronco from OEM to the Polk Audio. Big difference in speaker quality. Bass is ok, given they are 4" speakers, while the highs are crisp and clear. Good and cost effective improvement for improved sound quality
Kylie
Reviewed in Canada on May 24, 2024
used these to build a bluetooth speaker and the sound quality is great, definitely a good buy for the price.
GDS
Reviewed in the United States on December 8, 2024
Using these speakers as an upgrade in a Spark 40 desktop guitar amplifier. Definite improvement in balancing out the audio spectrum versus the stock speaker performance. Perfect fitment and easy to install. Includes all wiring and mounting accessories needed for a variety of applications. Familiar with Polk products for a number of years, trust their build quality and faithful musical reproduction. Pricing represents an unbeatable value - an additional positive note for choosing these. The Polk DB402 DB+ speakers are certainly another fine model of Polk's exemplary offerings!
Gavin
Reviewed in the United States on December 7, 2024
Speakers sound very good hooked up in my ammo crate speaker build. They are on the higher end of what I would have liked to spend, however they are definitely worth it compared to cheaper speakers that I have bought before. They look great and the waterproof has worked well for me so far. Would recommend, even if they are slightly more than similar speakers.
drixn5078
Reviewed in the United States on December 4, 2024
Out of the box, the speakers were impressively made with premium materials. They felt premium and when I tried them, they sounded beautiful. I have tried the other top brands across the board but these are special. Polk is my new go to speakers in the future.
Anastasia
Reviewed in the United Arab Emirates on December 14, 2024
The tweeter on one of the speakers isn’t working properly; the high frequencies seem to be cut off.
Mark Dickinson
Reviewed in Australia on July 29, 2023
These speaker flap and fart even at low volumes. Tried mounting them in unsorted and ported enclosures.My original no name brand speakers are better.Was trying to get something much nicer than factory speakers.Supplier is comunicating with me to resolve my issues ATM.
Trevor
Reviewed in Canada on July 21, 2018
Went from Pyle to these in my Crestliner. Night and day difference. Being run off 5 channel Clarion amplifier. Love the older db and MM's. The new DB's looks like cheap Chinese stuff, only time will tell how these hold up. So far no complaints.
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