---
product_id: 492131114
title: "Infinity PR503CF 5.25 Inch 2 Way Car Speaker System"
brand: "infinity"
price: "R$1807"
currency: BRL
in_stock: true
reviews_count: 3
category: "Infinity"
url: https://www.desertcart.com.br/products/492131114-infinity-pr503cf-5-25-inch-2-way-car-speaker-system
store_origin: BR
region: Brazil
---

# Edge-driven silk dome tweeters 35% larger cone area Compact design fits tight spaces Infinity PR503CF 5.25 Inch 2 Way Car Speaker System

**Brand:** infinity
**Price:** R$1807
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your drive with sound that commands attention!

## Quick Answers

- **What is this?** Infinity PR503CF 5.25 Inch 2 Way Car Speaker System by infinity
- **How much does it cost?** R$1807 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/492131114-infinity-pr503cf-5-25-inch-2-way-car-speaker-system)

## 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

- • **Crystal-Clear Highs:** Edge-driven silk dome tweeters expand high-frequency range, capturing every natural detail of your music.
- • **Maximized Sound Impact:** Harman’s patented Plus One cones deliver up to 35% more speaker cone area for richer, fuller audio.
- • **Signature Infinity Sound:** Expertly tuned for a consistent, premium audio experience that defines the Infinity brand.
- • **Cool & Reliable Performance:** Super-rigid vented baskets wick heat away from voice coils, ensuring durability and consistent sound.
- • **Seamless Vehicle Integration:** Compact, flush-mount design fits easily into tight spaces—no vehicle modifications needed.

## Overview

The Infinity Primus 503CF is a 5.25-inch 2-way component speaker system engineered for superior sound clarity and durability. Featuring Harman’s patented Plus One cones for 35% more cone area, edge-driven silk dome tweeters for expanded high frequencies, and a compact design for easy installation, these speakers deliver a premium audio upgrade for cars and SUVs without the hassle of modifications.

## Description

Buy Infinity Primus 503CF Primus Series 5-1/4" 2-Way Component Speaker System, Pair: Coaxial Speakers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good sounding speakers - Upgraded the speaker system in my BMW E39, these speakers sound really good out of the box and when tuned. I think it was a good value for the money bringing great quality.
Review: Exelente producto. No fue compatible con mi vehículo. Pero sin duda unos increíbles altavoces!!!!!!!

## 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 | B0B8F6YP9G |
| Antenna Location | car |
| Audio Driver Size | 5.25 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #186,337 in Electronics ( See Top 100 in Electronics ) #2,372 in Car Coaxial Speakers |
| Brand | Infinity |
| Built-In Media | 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 |
| Compatible Devices | Vehicle's Audio System |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Voice |
| Controller Type | Voice Control |
| Customer Reviews | 4.0 4.0 out of 5 stars (9) |
| Enclosure Material | Polypropylene |
| Frequency Response | 75 Hz |
| Impedance | 3 Ohms |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 12"D x 4.5"W x 7"H |
| Item Weight | 3.3 Pounds |
| MP3 player | No |
| Manufacturer | Infinity |
| Model Name | PR503CF |
| Model Number | PR503CF |
| Mounting Type | Flush Mount |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 100 Watts |
| Speaker Size | 5.25 Inches |
| Speaker Type | Component |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5.25 Inches |
| UPC | 050667379827 |
| Unit Count | 1.0 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Woofer Diameter | 5.25 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Infinity
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 75 Hz
- **Speaker Maximum Output Power:** 100 Watts

## Images

![Infinity PR503CF 5.25 Inch 2 Way Car Speaker System - Image 1](https://m.media-amazon.com/images/I/61zsYBrcEAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good sounding speakers
*by K***Y on October 8, 2025*

Upgraded the speaker system in my BMW E39, these speakers sound really good out of the box and when tuned. I think it was a good value for the money bringing great quality.

### ⭐⭐⭐⭐⭐ Review
*by F***. on January 14, 2026*

Exelente producto. No fue compatible con mi vehículo. Pero sin duda unos increíbles altavoces!!!!!!!

### ⭐⭐⭐⭐⭐ Review
*by A***S on July 3, 2025*

Super buena compra, superó mis expectativas más no es lo mejor de lo mejor, pero estoy súper contento con la compra, todo Super fácil de instalar, estoy pensando en comprar otro par para la parte de atrás de auto. Super recomendado!

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.com.br/products/492131114-infinity-pr503cf-5-25-inch-2-way-car-speaker-system](https://www.desertcart.com.br/products/492131114-infinity-pr503cf-5-25-inch-2-way-car-speaker-system)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-05-28*