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  1. Home
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  3. Infinity Car Audio & Electronics
  4. Infinity Car Speakers
  5. Infinity 5.25" Speakers

Infinity 5.25" Speakers

Choose Infinity 5.25" Speakers for a balanced and powerful audio experience.

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Speaker Size
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.
Design
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.
RMS Power Handling
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
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.
Sensitivity
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".
Impedance (Per Voice Coil)
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.
Shallow Mount Installation
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.
Tweeter Design
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.
Series
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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Infinity Reference REF507F (INFSPKRF507FUS)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

REF507F big
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Infinity Reference REF507F (INFSPKRF507FUS)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
1
Was $139.95 Details
$109.95 /pair

In stock

Add to Cart

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

Limited time!

Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

Kappa 53XF big
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Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $239.95 Details
Save $88.00
$151.95 /pair

In stock

Add to Cart

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity Primus 503F (INFSPKPR503F)

240W Peak (80W RMS) 5.25” Primus Series 2 Way Coaxial 3-ohm Speakers

INFSPKPR503F big
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Infinity Primus 503F (INFSPKPR503F)

240W Peak (80W RMS) 5.25” Primus Series 2 Way Coaxial 3-ohm Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 1/2" Silk Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $99.95 Details
$54.95 /pair

In stock

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• 1/2" Silk Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Infinity Reference 5032cfx (REF-5032CFXAM)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

REF-5032CFXAM big
Go to item page Right Arrow Icon of Right Arrow

Infinity Reference 5032cfx (REF-5032CFXAM)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $130.00 Details
$74.99 /pair

In stock

Add to Cart

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

Infinity Primus PR5012IS (PR5012ISAM)

240W Peak (80W RMS) 5.25" Primus Series 2 Way Coaxial 2.7-ohm Speakers

PR5012ISAM big
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Infinity Primus PR5012IS (PR5012ISAM)

240W Peak (80W RMS) 5.25" Primus Series 2 Way Coaxial 2.7-ohm Speakers

• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.7 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $119.95 Details
$54.95 /pair

In stock.

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.7 ohm
• Sensitivity: 88 dB

Infinity Reference 5032cfx (REF-5032CFXAM) (Open Box, Great)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

REF-5032CFXAM big
Go to item page Right Arrow Icon of Right Arrow

Infinity Reference 5032cfx (REF-5032CFXAM) (Open Box, Great)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $130.00 Details
$52.49 /pair

In stock

Only 1 Left!

Add to Cart

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

Infinity Kappa 53XF (INFSPKKA53XFAM) (Open Box, Great)

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

Kappa 53XF big
Go to item page Right Arrow Icon of Right Arrow

Infinity Kappa 53XF (INFSPKKA53XFAM) (Open Box, Great)

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $239.95 Details
$132.97 /pair

In stock

Only 1 Left!

Add to Cart

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity Kappa 53XF (INFSPKKA53XFAM) (Like New (Open Box))

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

Kappa 53XF big
Go to item page Right Arrow Icon of Right Arrow

Infinity Kappa 53XF (INFSPKKA53XFAM) (Like New (Open Box))

360W Peak (120W RMS) 5.25" Kappa Series 2 Way Coaxial 3-ohm Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $239.95 Details
$161.46 /pair

In stock

Only 1 Left!

Add to Cart

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity Reference 5032cfx (REF-5032CFXAM) (Open Box, Good)

270W Peak (90W RMS) 5.25" Reference 2-way 3-ohm Coaxial Car Speakers

REF-5032CFXAM big
Go to item page Right Arrow Icon of Right Arrow

Infinity Reference 5032cfx (REF-5032CFXAM) (Open Box, Good)

270W Peak (90W RMS) 5.25" Reference 2-way 3-ohm Coaxial Car Speakers

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $130.00 Details
$47.99 /pair

In stock

Only 1 Left!

Add to Cart

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

Infinity Primus PR5012IS (PR5012ISAM) (Open Box, Good)

240W Peak (80W RMS) 5.25" Primus Series 2 Way Coaxial 2.7-ohm Speakers

PR5012ISAM big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Infinity Primus PR5012IS (PR5012ISAM) (Open Box, Good)

240W Peak (80W RMS) 5.25" Primus Series 2 Way Coaxial 2.7-ohm Speakers

• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.7 ohm
• Sensitivity: 88 dB

found car based on your search Make sure it fits. Select a vehicle

• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.7 ohm
• Sensitivity: 88 dB

Infinity Primus PR5012is (Open Box, Good)

240W Max (80W RMS) 5.25" Primus Series 2-Way Coaxial Car Speakers

PR5012is big
Go to item page Right Arrow Icon of Right Arrow

Infinity Primus PR5012is (Open Box, Good)

240W Max (80W RMS) 5.25" Primus Series 2-Way Coaxial Car Speakers

• 120W Max Each, 40W RMS Each
• Edge-Driven Textile Balanced Dome Tweeter
• Polypropylene Plus One Cone
• 4 ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1-15/16"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Includes FREE/Discounted install accessories

found car based on your search Make sure it fits. Select a vehicle
Was $119.95 Details
$49.99 /pair

In stock

Only 1 Left!

Add to Cart

• 120W Max Each, 40W RMS Each
• Edge-Driven Textile Balanced Dome Tweeter
• Polypropylene Plus One Cone
• 4 ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1-15/16"

 
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    Infinity 5.25" Speakers Information

    5.25" speakers from Infinity are an excellent choice for crystal clear music. Replace those factory speakers and quickly notice the difference in sound and quality of your music and audio. When you are ready for new 5.25" speakers, think of Infinity.
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    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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