---
product_id: 11950166
title: "3FR-4 Full Range 3\" Speaker Driver 4 Ohm"
brand: "grs"
price: "A$36"
currency: AUD
in_stock: true
category: "Grs"
url: https://www.desertcart.com.au/products/11950166-3fr-4-full-range-3-speaker-driver-4-ohm
store_origin: AU
region: Australia
---

# 3" full-range driver 4 Ohm ferrite magnet foam surround & coated paper cone 3FR-4 Full Range 3" Speaker Driver 4 Ohm

**Brand:** grs
**Price:** A$36
**Availability:** ✅ In Stock

## Summary

> 🔊 Upgrade your sound, not your budget — the little speaker that could!

## Quick Answers

- **What is this?** 3FR-4 Full Range 3" Speaker Driver 4 Ohm by grs
- **How much does it cost?** A$36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/11950166-3fr-4-full-range-3-speaker-driver-4-ohm)

## Best For

- grs enthusiasts

## Why This Product

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

## Key Features

- • **Proven Longevity:** Tested to last 5+ years even in harsh outdoor conditions—sound that stands the test of time.
- • **Compact Powerhouse:** 3-inch full-range driver delivers crisp, balanced sound in a sleek form factor.
- • **Plug & Play Upgrade:** Fits standard 3" mounts perfectly—upgrade your speaker without hassle or modification.
- • **Durable Acoustic Build:** Coated paper cone with foam surround for clear, distortion-free audio longevity.
- • **Efficient Magnet Design:** Economical ferrite magnet ensures reliable performance without breaking the bank.

## Overview

The GRS 3FR-4 is a 3-inch, 4 Ohm full-range speaker driver featuring a coated paper cone and foam surround for clear sound reproduction. It uses an economical ferrite magnet assembly housed in a pincushion-shaped frame with a front gasket for easy installation. Designed for durability and efficiency, this driver offers a cost-effective replacement solution with proven longevity, making it ideal for DIY audio upgrades in home theater, car, and portable Bluetooth speakers.

## Description

GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm

## Features

- Coated paper cone with foam surround for clear sound
- Pincushion-shape frame with front gasket
- Economical ferrite magnet assembly
- Quality GRS construction and 1-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K2ESJZ2 |
| Additional Features | Subwoofer |
| Antenna Location | Home Theater,Construction |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #41,084 in Electronics ( See Top 100 in Electronics ) #346 in Car Coaxial Speakers |
| Brand | GRS |
| Built-In Media | 1 x Speaker |
| Color | Black |
| Compatible Devices | Laptop, Personal Computer, Smartphone |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Auxiliary |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.3 out of 5 stars 583 Reviews |
| Enclosure Material | Foam, Paper, Metal |
| Frequency Response | 20000 hertz |
| Impedance | 4 ohm |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 3.2"D x 3.7"W x 2"H |
| Item Weight | 11.2 ounces |
| Manufacturer | GRS |
| Maximum Range | 15 meters |
| Model Name | 1 |
| Model Number | 1 |
| Mounting Type | Bar Mount |
| Number of Audio Channels | 3 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 25 watts |
| Speaker Size | 3 inches |
| Speaker Type | Surround Sound |
| Specific Uses For Product | Construction, Home Theater |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 3 inches |
| UPC | 848864015194 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 3 inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** GRS
- **Connectivity Technology:** Auxiliary
- **Frequency Response:** 20000 hertz
- **Speaker Maximum Output Power:** 25 watts

## Images

![3FR-4 Full Range 3" Speaker Driver 4 Ohm - Image 1](https://m.media-amazon.com/images/I/61jWgSjcbBL.jpg)

## Questions & Answers

**Q: What is the exact outside dimension of the speaker frame?  I'd like to mount it in an enclosure which allows room for a 3 1/4 inch wide speaker.**
A: The front mounting flange of this speaker is basically square, with the four sides of the square being slightly rounded outward. There are four mounting holes, one in each corner of the mounting flange. The distance across the diagonals of the flange (crossing two opposite corner mounting holes) is 3.75 inches. The distance across the widest middle section of the flange ( intersecting the center of speaker cone) is 3.165 inches. Measurements were taken with a dial caliper and are accurate to 1/1000th (0.001) of an inch.  So, the speaker will just squeeze into your 3.25" mounting space with only 0.085 (about 3/32") of an inch to spare - assuming you are measuring the 3.25" across the width of a square speaker mounting space and not diagonally across the square space. BTW The depth is 1.7".

**Q: Does it comes in pairs or this is just a single speaker ?**
A: It's a single speaker.  If you'd like a pair, you'll have to order two.  Worth the extra effort.  Mine sounds great.

**Q: whats the wattage/rms of this speaker?**
A: Thank you for contacting Parts Express.  To follow are Product Specifications for the item.  Nominal Diameter3"Power Handling (RMS)10 WattsPower Handling (max)20 WattsImpedance4 ohmsFrequency Response135 to 16,000 HzSensitivity81 dB 1W/1mVoice Coil Diameter0.75"I hope the information is helpful.  Should you have any other questions, please let us know.  Customer Service Team

**Q: How thick is this speaker**
A: They are good speakers for 10 watts+10 watts in a sead box if this helps any

## Frequently Bought Together

- GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm
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**Shop now:** [https://www.desertcart.com.au/products/11950166-3fr-4-full-range-3-speaker-driver-4-ohm](https://www.desertcart.com.au/products/11950166-3fr-4-full-range-3-speaker-driver-4-ohm)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-10-09*