---
product_id: 511643318
title: "Infinity Primus 503F 5.25 2 Way Car Speakers - Pair"
brand: "infinity"
price: "€ 200.05"
currency: EUR
in_stock: true
category: "Infinity"
url: https://www.desertcart.es/products/511643318-infinity-primus-503f-5-25-2-way-car-speakers-pair
store_origin: ES
region: Spain
---

# Edge-driven silk dome tweeter for crisp highs 35% larger Plus One woofer cone area Compact design for easy, no-mod install Infinity Primus 503F 5.25 2 Way Car Speakers - Pair

**Brand:** infinity
**Price:** € 200.05
**Availability:** ✅ In Stock

## Summary

> 🎵 Upgrade your drive with sound that commands attention!

## Quick Answers

- **What is this?** Infinity Primus 503F 5.25 2 Way Car Speakers - Pair by infinity
- **How much does it cost?** € 200.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/511643318-infinity-primus-503f-5-25-2-way-car-speakers-pair)

## Best For

- infinity enthusiasts

## Why This Product

- Trusted infinity brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hear Every Detail:** Edge-driven silk dome tweeters extend high-frequency range, capturing lifelike vocals and shimmering cymbals.
- • **Cool Under Pressure:** Vented basket frame cools voice coils like a fan, ensuring reliable performance on every drive.
- • **Expand Your Soundstage:** Plus One woofer cone delivers up to 35% more cone area for richer, fuller bass that fills your car.
- • **Seamless Fit, Zero Hassle:** Compact, flush-mount design fits tight spaces—upgrade your ride without cutting or modifications.
- • **Consistent Infinity Signature:** Expertly tuned for balanced sound that matches Infinity’s renowned audio quality.

## Overview

The Infinity Primus 503F 5.25" 2-way car speakers pair advanced Plus One woofer cone technology with edge-driven silk dome tweeters to deliver a powerful, detailed audio experience. Designed for easy installation in tight vehicle spaces, these speakers feature vented baskets for heat dissipation and are tuned to maintain Infinity’s signature sound quality. With 40W RMS power handling and a frequency response from 75Hz to 20kHz, they bring crisp highs and rich bass to your in-car audio system.

## Description

Infinity PRIMUS 503F Primus Series 5-1/4 2-way Multi-Element Speakers, 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 8x Screws 8x Speed clips 2x 18AWG, 200mm length pigtail cable 1x Foam gaskets 2x Brand stickers 1x Owner’s manual General Specifications - Woofer: 5-1/4" Polypropylene Driver Tweeter: 1/2" Silk Dome Power Handling: 40Wrms, 120W peak Sensitivity (2.83V@1m): 91dB Frequency Response (-6dB): 75Hz – 20kHz Nominal Impedance: 3.0 ohms Crossover Point: 6kHz@6dB/octave

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B8F84P5H |
| Additional Features | Tweeters |
| Antenna Location | car |
| Audio Driver Size | 5.25 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #190,027 in Electronics ( See Top 100 in Electronics ) #2,197 in Car Coaxial Speakers |
| Brand | Infinity |
| Built-In Media | PR503F |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, Laptop, Desktop |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Controller Type | Voice Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (17) |
| Enclosure Material | Polypropylene, Silk |
| Frequency Response | 75 hertz |
| Impedance | 3 ohm |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 12"D x 4.5"W x 7"H |
| Manufacturer | Infinity |
| Model Name | PR503F |
| Model Number | PR503F |
| Mounting Type | Flush Mount |
| Number Of Circuits | 2 |
| Number of Audio Channels | 2 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 503 |
| Speaker Maximum Output Power | 80 watts |
| Speaker Size | 5.25 inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | In-car audio systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5.25 inches |
| Tweeter Diameter | 1 inches |
| UPC | 050667379810 |
| Unit Count | 1 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 5.25 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Infinity
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 75 hertz
- **Speaker Maximum Output Power:** 80 watts

## Images

![Infinity Primus 503F 5.25 2 Way Car Speakers - Pair - Image 1](https://m.media-amazon.com/images/I/61ZNtNm6mVL.jpg)

## Frequently Bought Together

- Infinity Primus 503F Primus Series 5-1/4 2-Way Multi-Element Speakers, Pair
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-09-25*