Polk Audio DB521 5.25-Inch Coaxial Speakers
- Pair of marine certified speakers perfect for use in boats of all types
- Equipped with a 0.75-inch liquid-cooled silk-polymer composite dome tweeter
- Maximum input power: 135 watts
- Equipped with a dynamic balance polymer/mica composite mineral-filled cone for a big sound
- Durable butyl rubber surround stands up to the stress of extreme temperatures, sunlight and time
Product Description
db521 5.25 Inch Coaxial SpeakerAmazon.com Product Description
Polk Audio db521 5.25″ Coaxial Speakers bring you superior looks and sound at a price that makes high performance affordable to everyone. The polymer/mica composite mineral filled cone is stiff yet lightweight and brings you big sound with little distortion. A 19mm liquid-cooled silk-polymer composite dome tweeter with neodymium magnet creates clear, detailed highs. The Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability. Polk db Series speakers are built tough to withstand the harshest environments, so they are perfect for use in boats of all types. The db Series delivers classic Polk Audi… More >>
Polk Audio DB521 5.25-Inch Coaxial Speakers
Related Posts
Tags: 5.25Inch, Audio, Audio Speakers, Butyl Rubber, Coaxial, Coaxial Speakers, Composite Dome, Db Series, DB521, Dome Tweeter, Dynamic Balance, Extreme Temperatures, Heat Dissipation, Heat Sink, High Performance, Input Power, Magnet, Mica, Plate Heat, Polk, Polk Audio, Polymer, Series Speakers, Speakers, Superior Power, Time Product
This entry was posted on Monday, March 1st, 2010 at 8:28 pm and is filed under Car Accessories. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
I bought these to replace the blown out speakers in my wifes Riviera. The day after I received these speakers, the car was totaled in an accident. When I received these speakers, however, I noticed that they were “Marine grade” speakers. Keep this in mind. Now I was also planning on putting additional speakers in my boat. So guess what? These Polk Audio speakers will be installed in my boat before spring time. Therefore, I’m keeping these speakers, I haven’t heard them yet. But they are POLK AUDIO, they are marine grade and they will fit in my boat. In the summer I can update this on how they sound.
Rating: 4 / 5
Good clean sound – not that efficient though. My Rockford Fosgates sound louder and as clean off the deck as these with 50 watts off an amplifier
Rating: 4 / 5
Purchased these speakers as replacements for the factory speakers that were on my pontoon boat… Boy oh boy, was I amazed at the difference, these speakers are awesome! All of my music is much more clear and crisp, the bass these little guys put out is excellent as well.
I would highly recommend these speakers to anyone looking to upgrade their marine speakers, you can’t go wrong with these!!!
Rating: 5 / 5
From the moment I took them out of the box I was impressed. Nicely stamped steel basket of quite sturdy material with a high quality rubber surround and poly cone. After putting them into the “custom” holes in the door panels of my ’88 Jeep Wrangler and hooking them to the head unit I fired them up and was completly Blown Away! The highs are crisp and oh so clean, the mids make sax’s sound like sax’s and guitars sound like guitars, the mid bass kick is nice and solid with not-a-speck of mushiness. But it’s the tweeter thats the killer in this unit for sure. It just sings! The crash of cymbals is so natural and clean, female voices, everything just sounds so natural coming out of these beauties.
And talk about “attack”, it’s here in spades. Try cranking up Hendrix’s “Machine Gun” and see if all the little hairs on the back of your neck don’t just stand straight up!
Now, all I have them powered by is the head unti at this point, a full 7 watts or so I imagine, and trust me when I say the head unit amp gives out long before the speakers do. The db’s just play louder and louder until the amp begins to distort, all the while showing no sign of distortion themselves. They cry to be driven by a good powerful amp!
This is the first speaker I have ever had in my Wrangler in the 19 years or so that I have been driving it that can play loud enopugh to be heard over the wind on the highway! Just love these babies and can’t wait to get more! Maybe the 4×6 for the dash spots?
P.S. These speakers would dovetail very nice with a good subwoofer. They sound nice and tight down to their limit.
P.P.S Bolt these speakers down TIGHT ! They are serious air moving pistons and they will shake like crazy. I suggest something metal!
Rating: 5 / 5