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Infinity Primus 503CF (PR503CF)

300W Peak (100W RMS) 5.25” Primus Series 2 Way 3-ohm Component Speaker System

Infinity
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• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Learn more about the pr503cf
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List price $149.95
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$119.95

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Choose from any of our many bundles that include this product for even more savings!

PR503CF, XBAF525, SDSK2, SDRLR1, BTK106 small

Infinity Primus 503CF with Installation Accessories

100W RMS 5.25” 2-Way Component Speaker System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

(121)

$161.21

List price $223.66

Bundle Savings of $62.45


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Current Promotions (12 offers)


This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $162 94

Promo Savings of $12 90

Total price:

$150 04

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $185 94

Promo Savings of $19 80

Total price:

$166 14

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $171 94

Promo Savings of $15 60

Total price:

$156 34

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $175 94

Promo Savings of $16 80

Total price:

$159 14

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $166 94

Promo Savings of $14 10

Total price:

$152 84

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $143 94

Promo Savings of $7 20

Total price:

$136 74

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $149 94

Promo Savings of $9 00

Total price:

$140 94

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

20% off


Priced separately $149 94

Promo Savings of $6 00

Total price:

$143 94

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

30% off


Priced separately $149 94

Promo Savings of $9 00

Total price:

$140 94

This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

20% off


Priced separately $130 94

Promo Savings of $2 20

Total price:

$128 74

Experience Better Sound with Easy to Install Speaker Baffles. This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

20% off


Priced separately $136 94

Promo Savings of $3 40

Total price:

$133 54

Get 40% Off NVX SDSK2 Sound Dampening Speaker Kit with your Speaker purchase! Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

Infinity Primus 503CF (PR503CF)

40% off


Priced separately $134 94

Promo Savings of $6 00

Total price:

$128 94

Description


Infinity brand icon

Authorized dealer

Product Details:

  • 5-1/4" 2-way Component System Car Speakers
  • Power Handling:
    • Peak: 300 watts per set / 150 watts each side
    • RMS: 100 watts per set / 50 watts each side
  • Polypropylene cone material
  • Rubber speaker surround
  • 3/4" Silk Edge Driven Dome tweeters
  • Top-mount Depth: 1.81"
  • Cutout Dimensions: 4.5"
  • Impedance: 3 ohm
  • Frequency Response: 75 - 20000 Hz
  • Sensitivity: 91 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.


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Specifications & Details


Speaker Specifications
Series
Primus Series
Priced Per
Pair
Number of Speakers
2 Speakers + 2 Tweeters
Speaker Size
5-1/4"
Design
2-way Component System
Tweeter Design
Edge Driven Dome
Tweeter Size
3/4"
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
91 dB
Frequency Response
75 - 20000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
1.81"
Bottom-Mount Depth
2.06"
Cutout Dimensions
4.5"
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
WITB: Speakers
Foam Gasket
Speaker
Tweeters (2)
Tweeter flush mounts (2)
Tweeter surface mounts (2)
Mounting screws (8)
Mounting clips (8)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

PR503CF

Weight:

3.28lbs

Internal SKU:

pr503cf

Internal Product ID:

198897

Customer Ratings & Reviews


Infinity Primus 503CF (PR503CF) 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 Reviews

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Great Product and Fantastic Price

These are a prime example of why Sonic Electronics is Growing Price, Free Shipping and customer Service can’t wait to use hear the Infinity speakers

By KELLY on February 27, 2025 Checkmark Icon Verified purchase
2002 Ford Thunderbird




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