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Infinity Primus 603F (INFSPKPR603C)

300W Peak (100W RMS) 6.5” Primus Series 2 Way Coaxial 3-ohm Speakers

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• 150 watts Peak Each, 50 watts RMS Each
• 1/2" Silk Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Learn more about the pr603f
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Fits your 2014 Flex

Fits the following locations:

  • Mounting adapter brackets
  • Speaker harness to avoid cutting factory wires
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List price $109.95
Thanks , You Pay:
-27%

$79.95

 with warranty
Starting at $14/mo or 4 payments of $20 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

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Description


Infinity brand icon

Authorized dealer

Product Details:

  • 6-1/2" Primus Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Polypropylene cone material with Plus One woofer cone architecture
  • Rubber speaker surround
  • 1/2" Silk Edge Driven Dome tweeters
  • Top-mount Depth: 1-5/16"
  • Cutout Dimensions: 5"
  • Impedance: 3 ohm
  • Frequency Response: 55 - 20000 Hz
  • Sensitivity: 92 dB
  • Authorized Internet Dealer
  • MFR #: PR603F
  • 1-year Manufacturer's Warranty

  • Priced Per Each Speaker


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Specifications & Details


Speaker Specifications
Series
Primus Series
Priced Per
Each Speaker
Number of Speakers
2
Speaker Size
6-1/2"
Design
2-way Coaxial
Tweeter Design
Edge Driven Dome
Tweeter Size
1/2"
Tweeter Composition
Silk
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
150 watts
RMS Power Handling
50 watts
Total PEAK Per Pair/Set
300 watts
Total RMS Per Pair/Set
100 watts
Sensitivity
92 dB
Frequency Response
55 - 20000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
1-5/16"
Bottom-Mount Depth
2-1/2"
Cutout Dimensions
5"
CTA-2031 Compliant
No
General specifications
Marine Certified
No
Hi-Res Certified
No
Color
Black
Illumination
None
Speaker Grilles
No
Includes Damping Kit
without Damping Kit
Compatible vehicle types
Car/Truck/SUV/Van
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Speakers
Mounting Brackets/Hardware
Speakers (2)
Mounting screws (8)
Mounting clips (8)
Speaker connection cables (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

PR603F

Weight:

3.09lbs

Internal SKU:

pr603f

Internal Product ID:

198900

Customer Ratings & Reviews


Infinity Primus 603F (INFSPKPR603C) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

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Great sound!

Nice fit. Sound great with factory stereo. Can't wait to hear what they sound like with my new Alpine deck.

By Rudy on August 26, 2023 Checkmark Icon Verified purchase
2016 Jeep Wrangler Unlimited

36 found this helpful


Huge improvement!!

These replaced the factory speakers in my Honda Accord. Since they are 3 ohm with a 92db sensitivity, I didn’t loose volume like you usually do when installing aftermarket speakers on the factory head unit. The clarity is a huge night and day difference. The tweeter ok these have a a built-in crossover on them, which makes the highs so crispy. It’s only a 6.5” so it doesn’t produce a ton of bass, but the overall spl is outstanding. If you have a sub, these things will compliment the bass so good. Give him a try, you’ll love them

By Anthony on July 31, 2024 Checkmark Icon Verified purchase
2017 Honda Accord

14 found this helpful


Good sound! Great price!

By Kirk on June 28, 2024 Checkmark Icon Verified purchase

12 found this helpful


Great for the price

Speakers are well built and sound great. Love the extra mid bass output.

By Jeff on August 26, 2024 Checkmark Icon Verified purchase
2017 Mitsubishi Outlander Sport

6 found this helpful


High quality sound with a lower price point

Incredible sound quality despite the lower price point. Great 2 way co axial for rear sound stage.

By Ring Ding Dong on September 25, 2025 Checkmark Icon Verified purchase
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By Tommy on January 11, 2025 Checkmark Icon Verified purchase
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.