---
product_id: 499585334
title: "Primus 603CF 6.5 Inch 2-Way Car Speaker System"
brand: "infinity"
price: "NT$10739"
currency: TWD
in_stock: true
category: "Infinity"
url: https://www.desertcart.tw/products/499585334-primus-603cf-6-5-inch-2-way-car-speaker-system
store_origin: TW
region: Taiwan
---

# edge-driven silk dome tweeter for crisp highs 35% larger Plus One™ woofer cone area vented basket cooling for heat dissipation Primus 603CF 6.5 Inch 2-Way Car Speaker System

**Brand:** infinity
**Price:** NT$10739
**Availability:** ✅ In Stock

## Summary

> 🚗🔊 Elevate your drive with sound that commands attention!

## Quick Answers

- **What is this?** Primus 603CF 6.5 Inch 2-Way Car Speaker System by infinity
- **How much does it cost?** NT$10739 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/499585334-primus-603cf-6-5-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

- • **Cool Under Pressure:** Super-rigid vented baskets actively cool voice coils, ensuring consistent performance and durability on every drive.
- • **Crystal Clear Highs:** Edge-driven silk dome tweeters extend high-frequency range, capturing every vocal nuance and cymbal shimmer.
- • **Expand Your Soundstage:** Plus One™ woofer cone delivers up to 35% more cone area for richer bass and louder volume without distortion.
- • **Signature Infinity Sound:** Expertly tuned for balanced, immersive audio that transforms your car into a premium concert hall on wheels.
- • **Seamless Fit, Zero Hassle:** Compact design fits tight spaces in most vehicles—no cutting or modifications needed for installation.

## Overview

The Infinity Primus 603CF is a 6.5-inch 2-way car speaker system featuring Harman’s patented Plus One™ woofer cone for 35% more cone area, edge-driven silk dome tweeters for expanded high frequencies, and vented basket frames that cool voice coils for reliable performance. Its compact design allows easy installation in most vehicles without modifications, delivering a signature Infinity sound experience with up to 120 watts max power.

## Description

Refresh Your Car with Infinity Science-Inspired Design SpeakersIf 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. There are 8 models for the family and all features a compact design for easy installation in any vehicle. Primus delivers great Infinity sound at a price that's hard to beat.FeaturesPlus One™ Woofer Cone ArchitectureEdge-driven Silk Dome Tweeter Engineered to Fitment and Easy Installation Vented Basket Frame Design for Cooling Competitively TunedPlus One™ Woofer Cone ArchitectureHarman’s patented (US patent #7548631) Plus One™ cones provide more overall speaker cone area (up to 35%) than other cones in its class - the result is higher sensitivity (increase up to 2dB) increased low frequency output and greater musical character.Edge-driven Silk Dome TweeterInfinity 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.Engineered to Fitment and Easy InstallationInfinity 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. Vented Basket Frame Design for CoolingThe super-rigid vented baskets help to cool the voice coils making for a reliable speaker. Not only do these look cool but 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. The benefits are lower distortion at high

## 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 | B0B8F3TWS6 |
| Antenna Location | car |
| Audio Driver Size | 6.5 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #113,015 in Electronics ( See Top 100 in Electronics ) #1,288 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 | Car Audio System, Laptop, MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Controller Type | Voice Control |
| Customer Package Type | FFP |
| Customer Reviews | 3.7 3.7 out of 5 stars (106) |
| Enclosure Material | Polypropylene, Silk |
| Frequency Response | 20 KHz |
| Impedance | 3 ohm |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 15"D x 5"W x 8"H |
| Manufacturer | Infinity |
| Model Name | PR603CF |
| Model Number | PR603CF |
| 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 |
| Specific Uses For Product | car |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 6.5 inches |
| Tweeter Diameter | 0.75 inches |
| UPC | 050667379766 |
| Unit Count | 1 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Woofer Diameter | 6.5 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Infinity
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 20 KHz
- **Speaker Maximum Output Power:** 120 watts

## Images

![Primus 603CF 6.5 Inch 2-Way Car Speaker System - Image 1](https://m.media-amazon.com/images/I/61nnQEeLp5L.jpg)
![Primus 603CF 6.5 Inch 2-Way Car Speaker System - Image 2](https://m.media-amazon.com/images/I/61YoXToNsYL.jpg)
![Primus 603CF 6.5 Inch 2-Way Car Speaker System - Image 3](https://m.media-amazon.com/images/I/51eyO2oaVgL.jpg)
![Primus 603CF 6.5 Inch 2-Way Car Speaker System - Image 4](https://m.media-amazon.com/images/I/51VujP8gipL.jpg)

## Frequently Bought Together

- Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair
- Infinity Primus 603F Primus Series 6-1/2" 2-Way Multi-Element Speakers, Pair
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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-08-06*