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Infinity Primus PR5012IS

5-1/4" 2-way car speakers

Item # 108P5012IM

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the...

Read more from Crutchfield writer, Alexander H.

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$59.99 pair

About the Infinity Primus PR5012IS

Treat yourself to an upgrade

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the excitement back to your drive. Install Infinity's Primus PR5012is 5-1/4" 2-way speakers in your doors and say goodbye to the uninspired vocals, muddy cymbals, and flabby bass of your factory sound. Lifelike vocals, crisp cymbals, and well-defined bass await you. What new playlists will you create to put these awesome speakers to the test? 

Treat yourself to an upgrade

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the excitement back to your drive. Install Infinity's Primus PR5012is 5-1/4" 2-way speakers in your doors and say goodbye to the uninspired vocals, muddy cymbals, and flabby bass of your factory sound. Lifelike vocals, crisp cymbals, and well-defined bass await you. What new playlists will you create to put these awesome speakers to the test? 

Edge-driven tweeter design

Infinity employs an edge-driven design in their soft dome tweeters for a smoother, more open response and minimal distortion at high volume. Prepare for a more clearly defined soundstage as the details in your music come alive. 

Famous Plus One+ technology

This Primus polypropylene woofer delivers solid, punchy bass, thanks to Infinity's proprietary Plus One+ woofer design. Infinity extends the cone right up to the edge of the basket, giving you lots of surface area — and a bigger cone means more bass when your music needs it.

Make the most of your power

Infinity's special "true 4-ohm architecture" uses a low-impedance voice coil to safely draw extra power out of your factory radio, aftermarket stereo, or an external amplifier, so you'll get a stronger clearer sound.

Grilles are not included; the factory grilles should be suitable for most applications.

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Product highlights:

  • 5-1/4" 2-way car speakers
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • edge-driven, textile dome tweeter
  • 2.7-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
  • handles up to 40 watts RMS (120 watts peak power)
  • frequency response: 67-20,000 Hz
  • sensitivity: 88 dB at 2.83 volts
  • top-mount depth: 1-15/16"
  • grilles not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PR5012ISAM
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What's in the box:

  • Two 2-way speakers
  • 2 Adhesive backed foam gaskets
  • Template on box
  • Installation manual

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More details on the Infinity Primus PR5012IS

Features & specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design Edge-Driven Dome
Impedance (Ohms) 2.7
Tweeter Composition Textile
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 88
Frequency Response 67 - 20k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 40
Peak Power Handling (Watts) 120
Top-mount Depth (Inches) 1 15/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 4 7/16

Product Research

Features

Plus One Woofer Cones: The Plus One speaker cones offer more surface area than other speakers that fit in the same size opening. This is accomplished by using a new basket design and hi-roll surround. The result is greater bass output and an increase in efficiency.

Voice Coil: The Primus Series speakers feature 2.7Ω voice coils to compensate for the high in-line resistance of small gauge factory wiring and extract every watt from the factory receiver, increasing overall system output and efficiency (relative to 4-ohm speakers). The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers capable of powering a lower impedance load.

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