Infinity Primus 503CF Primus Series 5-1/4" 2-Way Component Speaker System, Pair

★★★★★ 4.5 119 reviews

$99.95
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Management number 208590248 Release Date 2026/03/22 List Price $39.98 Model Number 208590248
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Infinity PRIMUS 503CF Primus Series 5-1/4" 2-way Component Speaker System, Pair If you are looking to upgrade your driving experience with amazing audio, Infinity Primus has you covered with their patented Plus One woofer cone and edge-driven dome technology. Infinity's sound signature brings you lifelike vocals, crisp cymbals, and well-defined bass. Plus, their rich all-black color scheme seamlessly integrates into the car interior. Their radial starburst pattern is inspired by the icon of a supernova, punctuated with the mirror-like copper mobius strip logo. Features - Plus One Woofer Cone Architecture Edge-driven Silk Dome Tweeter Engineered to Fitment and Easy Installation Vented Basket Frame Design for Cooling Competitively Tuned In The Box - 2x Speakers 2x Tweeters 2x In-line crossovers 8x Screws for speakers 6x Screws for tweeter kits 8x Speed clips 2x Threaded flush-mount adapters 2x Plastics locking nuts 2x Surface-mount cups 2x Starfish tweeter mounts 2x Foam gaskets 2x Brand stickers 1x Owner’s manual General Specifications - Woofer: 5-1/4" Polypropylene Driver Tweeter: 3/4" Silk Dome Power Handling: 50Wrms, 150W peak Sensitivity (2.83V@1m): 91dB Frequency Response (-6dB): 75Hz – 20kHz Nominal Impedance: 3.0 ohms Crossover Point: 5kHz@12dB/octave

  • Harman’s patented Plus One cones provide more overall speaker cone area (up to 35%) than other cones in its class
  • Infinity Primus speakers are engineered with edge-driven silk dome tweeters which expand the high-frequency range and ensure you'll hear all the natural detail of your favorite tunes.
  • Infinity Primus speakers feature a compact design for easy installation in tight spaces, allowing them to fit into more vehicles without the need for modifications and cutting.
  • The super-rigid vented baskets help to cool the voice coils making for a reliable speaker. They provide a real world benefit by wicking heat way from the motor structure almost like a fan as the cone moves through its stroke.
  • Infinity Primus speakers are carefully tuned to ensure each line has the consistent Infinity sound signature.
UPC 050667379827
Impedance 3 Ohm
Model Name PR503CF
Unit Count 1.0 Count
Item Weight 3.3 pounds
Manufacturer Infinity
Power Source Corded Electric
Speaker Size 5.25 Inches
Speaker Type Component
Is Waterproof FALSE
Mounting Type Flush Mount
Warranty Type Limited
Control Method Voice
Number of Items 1
Woofer Diameter 5.25 Inches
Audio Driver Size 5.25 Inches
Audio Driver Type Dynamic Driver
Item model number PR503CF
Compatible Devices Vehicle's Audio System
Product Dimensions 12"D x 4.5"W x 7"H
Subwoofer Diameter 5.25 Inches
Included Components 2x Speakers, 2x Tweeters, 2x In-line crossovers, 8x Screws for speakers, 6x Screws for tweeter kits, 8x Speed clips, 2x Threaded flush-mount adapters, 2x Plastics locking nuts, 2x Surface-mount cups, 2x Starfish tweeter mounts, 2x Foam gaskets, 2x Brand stickers, 1x Owner’s manual
Includes MP3 player No
Vehicle Service Type & SUVs, Select Cars, Truck
Recommended Uses For Product car
Subwoofer Connectivity Technology Wired
Surround Sound Channel Configuration 2.0

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