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Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
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The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
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The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
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Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
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An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
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The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
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This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

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Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
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Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Polk Audio DB692 DB+ 6x9-inch (DB 692)

900W Peak (300W RMS) 6x9" DB+ Series 3-way Car & Marine Coaxial Speakers

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900W Peak (300W RMS) 6x9" DB+ Series 3-way Car & Marine Coaxial Speakers

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

13
Was $149.99 Details
$129.00 /pair

In stock

Polk Audio DB402 DB+ 4-inch (DB 402)

270W Peak (90W RMS) 4" DB+ Series 2-way Car & Marine Coaxial Speakers

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270W Peak (90W RMS) 4" DB+ Series 2-way Car & Marine Coaxial Speakers

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB

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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

3
Was $89.99 Details
$79.00 /pair

In stock

Polk Audio DB572

450W Peak (150W RMS) 5x7" DB+ Series 2-way Car & Marine Coaxial Speakers

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450W Peak (150W RMS) 5x7" DB+ Series 2-way Car & Marine Coaxial Speakers

• 225 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

8
Was $119.99 Details
$99.00 /pair

In stock

Polk Audio MM652 - MM1 Series 6.5" Coaxial Speakers

600W Peak (200W RMS) 6.5" Mobile Monitor Series 2-Way Car & Marine Coaxial Speakers

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600W Peak (200W RMS) 6.5" Mobile Monitor Series 2-Way Car & Marine Coaxial Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1" Terylene Dome Tweeters
• Titanium Coated Composite cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

9
Was $249.00 Details
$179.00 /pair

In stock

Polk Audio MM6502

750W Peak (250W RMS) 6.5" Mobile Monitor Series 2-Way Car & Marine Component Speaker System

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750W Peak (250W RMS) 6.5" Mobile Monitor Series 2-Way Car & Marine Component Speaker System

• 375 watts Peak Each, 125 watts RMS Each
• 1" Terylene Dome Tweeters
• Titanium Coated Composite cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

4
Was $349.99 Details
$279.00 /set

In stock

Polk Audio MM692 - MM1 Series 6x9" Coaxial Speakers

900W Peak (300W RMS) 6x9" Mobile Monitor Series 3-Way Car & Marine Coaxial Speakers

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900W Peak (300W RMS) 6x9" Mobile Monitor Series 3-Way Car & Marine Coaxial Speakers

• 450 watts Peak Each, 150 watts RMS Each
• 1" Terylene Dome Tweeters
• Titanium Coated Composite cone material
• Impedance: 4 ohms
• Sensitivity: 94 dB

Buy More, Save MoreView Terms
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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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VIP Product Get $22.90 in rewards to spend later

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Includes FREE/Discounted install accessories

5
$229.00 /pair

In stock

Polk Audio DB5252 DB+ 5.25-inch Components (DB 5252)

600WPeak (200W RMS) 5.25” DB+ Series 2-way Car & Marine Component Speaker System

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600WPeak (200W RMS) 5.25” DB+ Series 2-way Car & Marine Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 91 dB

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FREE 2-day shipping to VA. Delivers Apr. 1 - Apr. 8
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VIP Product Get $17.90 in rewards to spend later

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Includes FREE/Discounted install accessories

4
Was $199.99 Details
$179.00 /set

Available

Ships in 10-14 days

Polk Audio MM522 - MM1 Series 5.25" Coaxial Speakers

480W Peak (160W RMS) 5.25" Mobile Monitor Series 2-Way Car & Marine Coaxial Car Speakers

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480W Peak (160W RMS) 5.25" Mobile Monitor Series 2-Way Car & Marine Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1" Terylene Dome Tweeters
• Titanium cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

Buy More, Save MoreView Terms
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FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

3
$179.00 /pair

In stock

Polk Audio MM572

600W Peak (200W RMS) 5x7" Mobile Monitor Series 2-Way Car & Marine Coaxial Speakers

MM572 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 5x7" Mobile Monitor Series 2-Way Car & Marine Coaxial Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1" Terylene Dome Tweeters
• Titanium Coated Composite cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

Buy More, Save MoreView Terms
shipping truck icon
FREE 2-day shipping to VA. Get it Thu, Mar. 21
VIP Star Icon

VIP Product Get $17.90 in rewards to spend later

install icon

Includes FREE/Discounted install accessories

$179.00 /pair

In stock

Polk Audio DB652 DB+ 6.5-inch (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2-way Car & Marine Coaxial Speakers

DB652 big
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600W Peak (200W RMS) 6.5" DB+ Series 2-way Car & Marine Coaxial Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

Buy More, Save MoreView Terms
shipping truck icon
FREE 2-day shipping to VA. Get it Thu, Mar. 21
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Includes FREE/Discounted install accessories

11
Was $119.99 Details
$99.00 /pair

In stock

Only 1 Left!

Polk Audio DB522

600W Peak (200W RMS) 5.25" DB+ Series 2-way Car and Marine Certified Coaxial Speakers

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600W Peak (200W RMS) 5.25" DB+ Series 2-way Car and Marine Certified Coaxial Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 91 dB

Buy More, Save MoreView Terms
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Includes FREE/Discounted install accessories

12
Was $99.99 Details
$89.00 /pair

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 91 dB

Polk Audio DB6502

600W Peak (200W RMS) 6.5" DB+ Series 2-Way Car & Marine Component Speaker System

Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.5" DB+ Series 2-Way Car & Marine Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

Buy More, Save MoreView Terms
VIP Star Icon

VIP Product Get $17.90 in rewards to spend later

install icon

Includes FREE/Discounted install accessories

6
Was $199.99 Details
$179.00 /set

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

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