#17 in Car audio speakers & subwoofers
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Reddit mentions of Polk Audio DB5251 5.25-Inch 2-Way Component System (Single, Silver)
Sentiment score: 2
Reddit mentions: 3
We found 3 Reddit mentions of Polk Audio DB5251 5.25-Inch 2-Way Component System (Single, Silver). Here are the top ones.
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A single unit 2 way component speaker systemEquipped with a 5.25 inch polymer/mica composite cone with rubber surroundMaximum input power: 250 wattsEquipped with one 1 inch liquid cooled silk polymer composite dome tweeter and a neodymium magnetSupplied adaptor rings enable a flexible fit for both 6.5 and 6.75 inch applications
Specs:
| Color | silver/black |
| Height | 3.149606296 Inches |
| Length | 6.692913379 Inches |
| Number of items | 1 |
| Release date | March 2020 |
| Weight | 4.4 Pounds |
| Width | 5.905511805 Inches |
Polk db5251 5.25" components are about $100 per set.
I have the 6.5" db6501s and they're quite good, and very loud without distorting (with proper amp).
The speakers on the door are a 1 inch tweeter and about 2.5 inch midrange then the 5 1/4 inch by your feet. Not all one inch tweeters will fit but these fit with little modification. Also check out Bavarian Sound Works even if you're not looking to buy from them to check what sizes they use. I plan on using the speakers I linked below with help from the other link. Good Luck on your first car.
http://www.dvatp.com/bmw/hk_speaker_upgrade/
http://www.amazon.com/Polk-Audio-DB5251-5-25-Inch-Component/dp/B000P0PFA0
Since you're looking at a whole system I'd look towards a 5 channel amp like this Kenwood. Polk makes good components. JL makes good SQ subs. That amp would power these fine. You're going to get a wide variety of opinions on this though.