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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.
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.
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.
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.
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".
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.
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.

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.
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.
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
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Infinity Reference 6432CFX (REF6432CFXAM)

270W Peak (90W RMS) 4"x6" Reference Series 2-Way Coaxial Car Speakers

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270W Peak (90W RMS) 4"x6" Reference Series 2-Way Coaxial Car Speakers

• 135 watts Peak Each, 45 watts RMS Each
• Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohms
• Sensitivity: 92 dB

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Was $139.95 Details
$72.99 /pair

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DS18 PRO-X6.4BMPK

1000W Peak (500W RMS) 6.5” PRO-X Series Midrange Component Speakers

Save 10% at Checkout with Code: Fall10
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1000W Peak (500W RMS) 6.5” PRO-X Series Midrange Component Speakers

• 500 watts Peak Each, 250 watts RMS Each
• 1" Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohms
• Sensitivity: 94 dB

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$115.95 /pair

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Hertz DCX87.3

120W Peak (60W RMS) 3.5” Dieci Series 2-Way Coaxial Car Speakers

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120W Peak (60W RMS) 3.5” Dieci Series 2-Way Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 5/8 PEI (Polyetherimide) Dome Tweeters
• Water-repellent treated paper cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

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• 60 watts Peak Each, 30 watts RMS Each
• 5/8 PEI (Polyetherimide) Dome Tweeters
• Water-repellent treated paper cone material
• Impedance: 4 ohms
• Sensitivity: 92 dB

Precision Power (PPI) MAS.654

200W Peak (150W) RMS 6.5" MAS Series 4-Ohm 2-Way Coaxial Motorcycle Speakers

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200W Peak (150W) RMS 6.5" MAS Series 4-Ohm 2-Way Coaxial Motorcycle Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene Cone
• Impedance: 4 ohms
• Sensitivity: 92 dB

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Was $359.99 Details
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• 200 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene Cone
• Impedance: 4 ohms
• Sensitivity: 92 dB

Pioneer TS-A878

120W Peak (30W RMS) 3.5" 2-Way A-Series Coaxial Car Speakers

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120W Peak (30W RMS) 3.5" 2-Way A-Series Coaxial Car Speakers

• Peak Power: 60W
• RMS Power: 30W
• 1" PEI Dome Tweeter
• Mounting Depth: 1-7/16"
• Injection Molded Polypropylene Carbon-Graphite Composite Cone
• 4 Ohms Impedance
• Ultra-Slim Neodymium Magnet

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• Peak Power: 60W
• RMS Power: 30W
• 1" PEI Dome Tweeter
• Mounting Depth: 1-7/16"
• Injection Molded Polypropylene Carbon-Graphite Composite Cone
• 4 Ohms Impedance
• Ultra-Slim Neodymium Magnet

Alpine R2-S652

600W Peak (200W RMS) 6.5" R-Series PRO 2-Way Component Speakers with Magnesium Hard-Dome Tweeters

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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600W Peak (200W RMS) 6.5" R-Series PRO 2-Way Component Speakers with Magnesium Hard-Dome Tweeters

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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Precision Power (PPI) MAS.652

200W Peak (150W) RMS 6.5" MAS Series 2-Ohm 2-Way Coaxial Motorcycle Speakers

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200W Peak (150W) RMS 6.5" MAS Series 2-Ohm 2-Way Coaxial Motorcycle Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene Cone
• Impedance: 2 ohms
• Sensitivity: 92 dB

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Was $359.99 Details
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• 200 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene Cone
• Impedance: 2 ohms
• Sensitivity: 92 dB

Rockford Fosgate Punch P1675

240W Peak (120W RMS) 6.75” Punch Series 3-way Coaxial Car Speaker

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240W Peak (120W RMS) 6.75” Punch Series 3-way Coaxial Car Speaker

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Injection molded Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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$99.99 /pair

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• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Injection molded Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

Kicker KSC6504 (47KSC6504)

400W Peak (200W RMS) 6.5” KS Series 2-Way Coaxial Car Speakers

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400W Peak (200W RMS) 6.5” KS Series 2-Way Coaxial Car Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1/2" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB

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NVX VSP525KIT

750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters

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750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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Was $124.99 Details
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Diamond Audio DMD35

80W Peak (40W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers

Save 15% at Checkout with Code: Fall15
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80W Peak (40W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 84 dB

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Was $109.99 Details
$99.99 /pair

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• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 84 dB

Rockford Fosgate Prime R1675X2

180W Peak (90W RMS) 6.75" Prime Series 2-Way Coaxial Car Speakers

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180W Peak (90W RMS) 6.75" Prime Series 2-Way Coaxial Car Speakers

• 90 watts Peak Each, 45 watts RMS Each
• 1/2" Silk Dome Tweeters
• Vacuum Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 91 dB

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$69.99 /pair

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• 90 watts Peak Each, 45 watts RMS Each
• 1/2" Silk Dome Tweeters
• Vacuum Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 91 dB

Earthquake T46

600W Peak (300W RMS) 4X6” TNT Series 2-Way Coaxial Speakers with Mylar Tweeters

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600W Peak (300W RMS) 4X6” TNT Series 2-Way Coaxial Speakers with Mylar Tweeters

• 1" Mylar Dome Tweeters
• Poly-Coated Paper cone material
• Impedance: 4 ohms
• Sensitivity: 87 dB
• Mounting Depth: 2-5/16"

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Alpine S2-S65

480W Peak (160W RMS) 6.5" S-Series 2-way Coaxial Car Speakers

Price Drop, Instant Savings Already Applied!
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480W Peak (160W RMS) 6.5" S-Series 2-way Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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JL Audio C1-650

450W Peak (100W RMS) 6.5" C1 2-Way Component Car Speakers (C1 650)

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450W Peak (100W RMS) 6.5" C1 2-Way Component Car Speakers (C1 650)

• 225 Watts Max Each Side, 50 Watts RMS Each
• .75" Aluminum Dome Tweeter
• Injection-Molded Mineral-Filled Polypropylene Midwoofer Cone
• 4 Ohms Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2.44"

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Boss CH4630

500W Peak (250W RMS) 4"x6" Chaos Exxtreme Series 3-Way Coaxial Car Speakers

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500W Peak (250W RMS) 4"x6" Chaos Exxtreme Series 3-Way Coaxial Car Speakers

• 250 watts Peak Each, 125 watts RMS Each
• 1" Piezoelectric Dome Tweeters
• Poly injected cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB

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$34.99 /pair

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Kicker DSC3504 (43DSC3504)

160W Max (40W RMS) 3.5" DS Series 2-Way Coaxial Car Speakers

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160W Max (40W RMS) 3.5" DS Series 2-Way Coaxial Car Speakers

• 80 watts Peak Each, 20 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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• 80 watts Peak Each, 20 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

Pioneer TS-M650PRO

1000W Peak (220W RMS) 6-1/2" PRO Series High Efficiency Mid-Range Car Speaker Drivers

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1000W Peak (220W RMS) 6-1/2" PRO Series High Efficiency Mid-Range Car Speaker Drivers

• 500W Max
• 110W RMS
• 4 ohms Impedance
• Optimally Blended Pulp Cone
• Corrugated Speaker Surround

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Hertz CK 165

285W Peak (95W RMS) 6.5" Cento Series 2-Way Component Speaker system

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285W Peak (95W RMS) 6.5" Cento Series 2-Way Component Speaker system

• 142 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohms Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2"

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Hertz C 165 F

420W Peak (140W RMS) 6.5" Cento Series Coaxial Car Speakers

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420W Peak (140W RMS) 6.5" Cento Series Coaxial Car Speakers

• 210 watts Peak Each, 70 watts RMS Each
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

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    FAQ for Speakers in 2007 Sierra 2500 HD

    Q: Can I upgrade or change the Speakers in 2007 GMC Sierra 2500 HD?

    A: Yes this page includes all the best Speakers that work in your Sierra 2500 HD.

    2007 GMC Sierra 2500 HD

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