---
product_id: 510755539
title: "Primus 603F Primus Series 6-1/2\" 2-Way Multi-Element Speakers, Pair"
brand: "infinity"
price: "₨57827"
currency: LKR
in_stock: true
reviews_count: 10
category: "Infinity"
url: https://www.desertcart.lk/products/510755539-primus-603f-primus-series-6-1-2-2-way-multi
store_origin: LK
region: Sri Lanka
---

# Edge-driven silk dome tweeter for crisp highs 35% larger Plus One woofer cone area Vented basket cools voice coils efficiently Primus 603F Primus Series 6-1/2" 2-Way Multi-Element Speakers, Pair

**Brand:** infinity
**Price:** ₨57827
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Primus 603F Primus Series 6-1/2" 2-Way Multi-Element Speakers, Pair by infinity
- **How much does it cost?** ₨57827 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/510755539-primus-603f-primus-series-6-1-2-2-way-multi)

## 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 act like a fan to wick heat away, ensuring reliable performance on every drive.
- • **Crystal Clear Highs:** Edge-driven silk dome tweeters extend high-frequency range, revealing every vocal nuance and cymbal shimmer.
- • **Expand Your Soundstage:** Plus One woofer cone delivers up to 35% more cone area for richer, fuller bass that commands attention.
- • **Signature Infinity Sound:** Expertly tuned for consistent, immersive audio that elevates your daily commute into a concert experience.
- • **Seamless Fit, Zero Hassle:** Compact design fits tight vehicle spaces perfectly—no cutting or modifications needed, just plug and play.

## Overview

The Infinity Primus 603F speakers feature 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 durability. Their compact design allows easy installation in most vehicles without modification, delivering a balanced, high-fidelity 2-way audio experience with 50W RMS power handling and a 55Hz–20kHz frequency response.

## Description

Infinity PRIMUS 603F Primus Series 6-1/2" 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: 6-1/2" Polypropylene Driver Tweeter: 1/2" Silk Dome Power Handling: 50Wrms, 150W peak Sensitivity (2.83V@1m): 92dB Frequency Response (-6dB): 55Hz – 20kHz Nominal Impedance: 3.0 ohms Crossover Point: 5kHz@6dB/octave

Review: Upgraded my truck speakers - These speakers are great quality they sound clean and I'm happy with this purchase
Review: impressive factory replacement - good factory replacement for a stock system good punch for mid bass just don't expect low end they are def not that they Excel in rock music so far but def better than factory clarity wise yes I have some sound deadening done I'm sure that helps but why replace something and not put the best chances for success with it

## 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 | B0B8F561J2 |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #44,979 in Electronics ( See Top 100 in Electronics ) #386 in Car Coaxial Speakers |
| Color | black |
| Compatible Devices | Car |
| Control Method | Touch |
| Customer Reviews | 4.4 4.4 out of 5 stars (50) |
| Date First Available | August 2, 2022 |
| Included Components | 2x Speakers, 8x Screws, 8x Speed clips, 2x 18AWG, 200mm length pigtail cable, 1x Foam gaskets, 2x Brand stickers, 1x Owner’s manual |
| Is Waterproof | FALSE |
| Item Weight | 3.1 pounds |
| Item model number | PR603F |
| Manufacturer | Infinity |
| Material | Polypropylene, Silk |
| Model Name | PR603F |
| Mounting Type | Flush Mount |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 15"D x 4"W x 8"H |
| Recommended Uses For Product | car |
| Set Name | Pair |
| Shape | rectangular prism |
| Speaker Size | 6.5 Inches |
| Speaker Type | Tweeter |
| Subwoofer Connectivity Technology | Wired |
| Surround Sound Channel Configuration | 2.0 |
| Tweeter Diameter | 1 Inches |
| UPC | 050667379773 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Wireless Communication Technology | No Wireless Communication Technology |
| Woofer Diameter | 6.5 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Infinity
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 20 KHz
- **Speaker Maximum Output Power:** 100 Watts

## Images

![Primus 603F Primus Series 6-1/2" 2-Way Multi-Element Speakers, Pair - Image 1](https://m.media-amazon.com/images/I/61ncsOatfLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Upgraded my truck speakers
*by B***E on September 23, 2025*

These speakers are great quality they sound clean and I'm happy with this purchase

### ⭐⭐⭐⭐⭐ impressive factory replacement
*by S***N on November 2, 2025*

good factory replacement for a stock system good punch for mid bass just don't expect low end they are def not that they Excel in rock music so far but def better than factory clarity wise yes I have some sound deadening done I'm sure that helps but why replace something and not put the best chances for success with it

### ⭐⭐⭐⭐ Good budget option
*by E***A on July 11, 2025*

Good budget option sounds nice and crisp most important thing is these have Silk tweeters. Bass is lacking but that's expected at this price range these sound real nice running off head unit power

## Frequently Bought Together

- Infinity Primus 603F Primus Series 6-1/2" 2-Way Multi-Element Speakers, Pair
- Infinity Primus 603CF Primus Series 6-1/2" 2-Way Component Speaker System, Pair
- Metra 72-4568 Speaker Harness for Select 1988-UP GM Vehicles,Black

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-03*