Buy Polk Audio DB501 5-Inch Coaxial Speakers (Pair, Black)Polk Audio DB501 5-Inch Coaxial Speakers (Pair, Black) Product Description:
- 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
db501 5 Inch Coaxial Speaker
Customer Reviews
Most helpful customer reviews
4 of 4 people found the following review helpful.
Great speakers
By shackf16
Added these when I upgraded my entire sound system in my 2003 Nissan Frontier. They fit perfectly, and were a definite improvement from the factory paper speakers. There were a limited number of 5-inch speakers on the market, and I was using Polk Audio 6.5-inch component speakers up front and figured I would stick with Polk for the back. After they were installed, I don't hear much of them due to the awesome sound from the front - plus the powered SUB. However, I' sure they make a big difference for those stuck in the back seat. I'm satisfied with them, and would buy them again.
3 of 3 people found the following review helpful.
Just right...
By Brian Curnutt
I always wanted to upgrade the stock system in my '92 Toyota 4Runner, which I bought used in 2004. Not a big deal to me though since I usually listen to talk radio. However, when I gave it to my son when he started driving, he immediately wanted to improve the sound quality. I went shopping on-line and found out the stock sizes for the front were 4" and the back side panels were 5 1/4".I found a great deal on the DB401s (refurb) and easily installed them in the OEM ported boxes in the front. I found that the original speakers had been replaced by Rockford Fosgate 3" speakers. They never sounded decent because they were too small and let the air leak out around them instead of going through the ported enclosures. The DB401s sounds SO much better, in spite of not having much bass due to their size (but a lot more than the others).I found another great deal on the DB521s for the back and only after I got one of the side panels pulled back did I realize the 5 1/4" speakers were too big. All three of the on-line sizing guides (one from a major audio retailer which shall remain nameless) were WRONG! I then found the DB501s, thankfully, since there are few that size to be found, and they fit perfectly. Again, the previous owner (or installer) had put in the wrong sized speakers. They were Infinity Kappa 4" that let the air leak around the enclosure. As soon as these were installed the bass deepened dramatically (for 5" speakers). A subwoofer would make a big difference in sound power, but my son doesn't care about blowing the windows out, thankfully. He just wants good, clean sound; and that's what we got!These speakers have a 93dB efficiency rating and I can tell they go much louder and cleaner than the previous speakers without clipping, even with the stock head unit. The lower 65Hz bass also is evident and very clean. With the new Kenwood HD radio we're putting in, I expect to be even more impressed with much crisper highs and more solid bass due to the higher power amp, all benefited by the high efficiency of these speakers. A separate amp would probably produce even better results, but we'll try this first.Now I want to drive it more often just to enjoy the sound improvement. VERY satisfied!!!7/24/11 - UPDATE: After putting in the Kenwood HD radio, I can tell you that the sound is dramatically better!!! It has enough wattage and headroom to push these speakers much louder, while still avoiding clipping (distortion). It is crystal clear in HD (I was stunned). It still doesn't have the powerful bass some would prefer, but in reality, it is strong enough and deep enough to provide accurate sound and surpising lows, beyond what you'd expect from 4" and 5" speakers. I always question myself on purchases, so I went looking again to be sure I did the best I could do on my budget. Confirmation: There aren't any other speakers in this price range that are as efficient as the Polks and the sound quality makes them that much better. When you know the power algorithm of "double the power for every 3db increase in sound", you realize that the efficiency of the speaker is much more important than the total wattage of the head unit and/or amp. I couldn't be more pleased with the Polks!
2 of 2 people found the following review helpful.Gold Wing install
By Firedog
I purchased 2 pairs of these speakers for replacement on a Honda Gold Wing touring motorcycle. The rear set is a new installation as the bike doesn't have factory rear speakers. WoW!! What a difference. I can tell a huge difference in sound quality already. The fronts will be replaced as soon as I get a chance. Money well spent. Excellent sound. Easy install.
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