---
product_id: 581899071
title: "Infinity Primus 603CF Primus Series 6-1/2\" 2-Way Component Speaker System, Pair"
brand: "infinity"
price: "SAR 859"
currency: SAR
in_stock: true
reviews_count: 5
category: "Infinity"
url: https://www.desertcart.com.sa/products/581899071-infinity-primus-603cf-primus-series-6-1-2-2-way
store_origin: SA
region: Saudi Arabia
---

# Edge-driven silk dome tweeter for crisp highs 35% larger Plus One woofer cone area Compact design fits tight vehicle spaces Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair

**Brand:** infinity
**Price:** SAR 859
**Availability:** ✅ In Stock

## Summary

> 🎵 Upgrade your ride with sound that turns heads and drops jaws!

## Quick Answers

- **What is this?** Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair by infinity
- **How much does it cost?** SAR 859 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/581899071-infinity-primus-603cf-primus-series-6-1-2-2-way)

## 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

- • **Powerful Plus One Woofer:** Experience 35% more cone area for richer, fuller bass that commands attention on every drive.
- • **Space-Smart Installation:** Engineered for seamless fit in tight spots—no cutting or modifications needed, perfect for sleek, clean installs.
- • **Silk Dome Tweeter Clarity:** Edge-driven tweeters deliver crystal-clear highs and natural detail, making every note pop with precision.
- • **Complete Installation Kit Included:** All mounting hardware and accessories included for a hassle-free upgrade that gets you on the road faster.
- • **Consistent Infinity Sound Signature:** Tuned to maintain the iconic Infinity balance of bright mids and crisp highs, elevating your in-car audio game.

## Overview

The Infinity Primus 603CF is a 6.5-inch 2-way component speaker system featuring Harman’s patented Plus One woofer cone for 35% more cone area, edge-driven silk dome tweeters for expanded high-frequency clarity, and a compact design for easy installation in tight vehicle spaces. With a power handling of 60W RMS (180W peak), 92dB sensitivity, and a frequency response from 55Hz to 20kHz, it delivers crisp mids and highs with the signature Infinity sound. The package includes all necessary mounting hardware and crossovers, making it a professional-grade upgrade for car audio enthusiasts seeking bright, detailed sound without complicated installs.

## Description

Infinity PRIMUS 603CF Primus Series 6-1/2" 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: 6.5" Polypropylene Driver Tweeter: 3/4" Silk Dome Power Handling: 60Wrms, 180W peak Sensitivity (2.83V@1m): 92dB Frequency Response (-6dB): 55Hz – 20kHz Nominal Impedance: 3.0 ohms Crossover Point: 5kHz@12dB/octave.

Review: Slammin! - It was time to upgrade the speakers in my racecar; the walmart coax pioneers had to go. I spent some time doing some review reading, and after many hours settled on the Infinity primus component speakers. To note, I am familiar with Infinity as a brand, but had no prior experience listening to them in person. I knew from reading many reviews that Infinity's have a predisposition to be "bright" or "sharp" in their tonality, and that is completely true, these are ear shattering, like stepping outside in the snow, after you brushed your teeth, with a mint in your mouth, and inhaling very quickly. A quick adjustment of the treble in my head unit fixed that, vocals are now crisp and sharp, but not too shrill. I had to get creative with the tweeter mounts, but I am a fabricator by trade, so it did not take me long to figure something out. I really like the mounts they give you for the tweeters, they were very handy and made the job go by quicker. The primus midranges may not be as nicely constructed as Infinity's higher end models, but I was looking to keep weight down, and in my 1986 300zx, space in the door is limited. They fit perfectly with no modification needed. I want to be clear these are not for bass, that is not their intended purpose. Their purpose is to be bright and clear and provide crisp mids and highs, which they do wonderfully for the money. You need to pair these with a quality subwoofer to really bring the ensemble together. I went with a 10" JL microsub, which has complemented the infinitys quite well.
Review: Sounds amazing - Sound amazing so far at low power from head unit. Very impressed, worth the money

## 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.
- Infinity Primus speakers are carefully tuned to ensure each line has the consistent Infinity sound signature.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B8F3TWS6 |
| Additional Features | Plus One Woofer Cone, Vented Basket Frame Design for Cooling |
| Age Range Description | Adult |
| Antenna Location | For Custom Audio Installations, For Surround Sound Systems |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Audio output mode | Stereo |
| 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 |
| Color | black |
| Compatible Devices | Car |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Connectivity technology | Coaxial |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.2 out of 5 stars 106 Reviews |
| Enclosure Material | Polypropylene, Silk |
| Frequency Response | 55 Hz |
| Frequency response | 55 Hz |
| Impedance | 3 Ohms |
| Is Waterproof | False |
| Item Dimensions D x W x H | 38.1D x 12.7W x 20.3H centimeters |
| MP3 player | No |
| Manufacturer | Infinity |
| Model Name | PR603CF |
| Model Number | PR603CF |
| Mounting Type | Flush Mount |
| Mounting type | Flush Mount |
| Number of Audio Channels | 2 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 603 |
| Speaker Maximum Output Power | 120 Watts |
| Speaker Size | 6.5 Inches |
| Speaker Type | Component |
| Speaker maximum output power | 120 Watts |
| Specific Uses For Product | Car Audio Systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 6.5 Inches |
| Tweeter Diameter | 0.75 Inches |
| UPC | 050667379766 |
| Wireless Technology | No wireless communication technology |
| Woofer Diameter | 6.5 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Infinity
- **Connectivity technology:** Coaxial
- **Frequency response:** 55 Hz
- **Speaker maximum output power:** 120 Watts

## Images

![Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair - Image 1](https://m.media-amazon.com/images/I/61nnQEeLp5L.jpg)
![Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair - Image 2](https://m.media-amazon.com/images/I/61YoXToNsYL.jpg)
![Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair - Image 3](https://m.media-amazon.com/images/I/51eyO2oaVgL.jpg)
![Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair - Image 4](https://m.media-amazon.com/images/I/51VujP8gipL.jpg)
![Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair - Image 5](https://m.media-amazon.com/images/I/51ejEqBDvgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Slammin!
*by Z***D on 16 January 2026*

It was time to upgrade the speakers in my racecar; the walmart coax pioneers had to go. I spent some time doing some review reading, and after many hours settled on the Infinity primus component speakers. To note, I am familiar with Infinity as a brand, but had no prior experience listening to them in person. I knew from reading many reviews that Infinity's have a predisposition to be "bright" or "sharp" in their tonality, and that is completely true, these are ear shattering, like stepping outside in the snow, after you brushed your teeth, with a mint in your mouth, and inhaling very quickly. A quick adjustment of the treble in my head unit fixed that, vocals are now crisp and sharp, but not too shrill. I had to get creative with the tweeter mounts, but I am a fabricator by trade, so it did not take me long to figure something out. I really like the mounts they give you for the tweeters, they were very handy and made the job go by quicker. The primus midranges may not be as nicely constructed as Infinity's higher end models, but I was looking to keep weight down, and in my 1986 300zx, space in the door is limited. They fit perfectly with no modification needed. I want to be clear these are not for bass, that is not their intended purpose. Their purpose is to be bright and clear and provide crisp mids and highs, which they do wonderfully for the money. You need to pair these with a quality subwoofer to really bring the ensemble together. I went with a 10" JL microsub, which has complemented the infinitys quite well.

### ⭐⭐⭐⭐⭐ Sounds amazing
*by A***R on 11 August 2026*

Sound amazing so far at low power from head unit. Very impressed, worth the money

### ⭐⭐⭐⭐⭐ ممتاز
*by ب***ي on 11 September 2025*

ممتاز

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*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-08-25*