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🌊 Elevate your soundscape—wherever the road or waves take you!
The Polk Audio DB402 DB+ Series 4" Marine Coaxial Speakers deliver high-quality, distortion-free sound with 135W peak power and a wide 60Hz-22kHz frequency range. Built for marine and vehicle use, these IP56-certified speakers resist salt, UV, and humidity, ensuring durability in harsh environments. Featuring Dynamic Balance technology and a built-in crossover, they provide precise audio performance with easy installation and stylish design, perfect for millennials seeking premium sound on the go.
| Additional Features | Waterproof |
| Antenna Location | For Marine Vehicles, For Vehicles |
| Asin | B01EYCTVUE |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #20,507 in Electronics (See Top 100 in Electronics) #112 in Car Coaxial Speakers |
| Brand | Polk Audio |
| Built In Media | Literature, Speaker |
| Color | Black |
| Compatible Devices | car |
| Compatible With Vehicle Type | Car, Boat, Motorcycle, ATV |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Controller Type | Touchpad |
| Customer Package Type | Frustration-Free Packaging |
| Customer Reviews | 4.5 4.5 out of 5 stars (516) 4.5 out of 5 stars |
| Enclosure Material | Steel, Polypropylene |
| Frequency Response | 22 KHz |
| Global Trade Identification Number | 00747192127244 |
| Is Waterproof | True |
| Item Dimensions D X W X H | 11.9"D x 11.8"W x 12"H |
| Item Weight | 2.5 pounds |
| Manufacturer | Polk Audio |
| Model Name | DB402 |
| Model Number | AA9402 |
| Mounting Type | Boat Mount,Coaxial,Top Mount |
| Number Of Audio Channels | 2 |
| Number Of Circuits | 2 |
| Number Of Items | 2 |
| Number Of Power Levels | 1 |
| Power Source | Corded Electric |
| Series Number | 94 |
| Speaker Maximum Output Power | 135 watts |
| Speaker Size | 4 inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | Outdoor/Portable Audio Setups, Marine Applications |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4 inches |
| Total Ethernet Ports | 2 |
| Tweeter Diameter | 0.75 inches |
| Unit Count | 1 Count |
| Upc | 747192127244 |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 4 inches |
User
Loud and clear
These speakers were used to make a bluetooth boom box and worked very well and sounded amazing. They were very loud and clear.
User
Lexus dash speaker upgrade
Installed in my 2018 Lexus GX460 (non Mark Levinson and using the stock amplifier) in the dash corners and center. The installation was super easy and only required a minimum amount of fussing to get the fit right.I chose these due to the high efficiency rating knowing I’d be using them on the stock amplifier.They actually sound pretty good. Bass response (for a 4 inch speaker) as well as detail and dynamic “punch” have all improved over the stock speakers. For a budget upgrade I’m fairly happy with them.
User
Excellent quality
Sounds great. Replace your paper speakers with these. You won't regret it.
User
Full Balanced Sound
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!
User
It's poke audio
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.
User
Great for e-bikes
Handles power well , strong can handle rain and off road , easy set up , very durable , great clarity , great compatibility with marine pods
User
Excellent Sound as Always from Polk Audio
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.
User
Works, fits. Sound quality is okay
They work, and would presume they install nicely into most vehicles with 4" standard holes.Sound quality is ok. No low-end at all below 500Hz. I don't think I have had any buzzing (other than the door itself) from the speakers, but am adding some baffles https://smile.amazon.com/dp/B0039YWT3U/ref=cm_cr_ryp_prd_ttl_sol_38 to them. Not the best factory setup. THe grills stick out a little bit, enbough that I had to get a different window crank handle.
User
Not working well in my situation
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.
User
It seems the item is defective.
The tweeter on one of the speakers isn’t working properly; the high frequencies seem to be cut off.
User
Great output
Must try .. it’s really work …
User
Best bang for the buck
Product was exactly as described, I used them for my 4 wheeler sound system and they see plenty of rain/mud. no issues in the last 2 months I've had them
User
Great sound, good bass
I thought they were great sound for the money , good mid-range and bass was good
Trustpilot
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