---
product_id: 263688870
title: "2\" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Ardu..."
brand: "gikfun"
price: "¥6699"
currency: JPY
in_stock: true
category: "Gikfun"
url: https://www.desertcart.jp/products/263688870-2-4ohm-3w-full-range-audio-speaker-stereo-woofer-loudspeaker
store_origin: JP
region: Japan
---

# 4 Ohm impedance 2-inch driver size 3W power output 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Ardu...

**Brand:** gikfun
**Price:** ¥6699
**Availability:** ✅ In Stock

## Summary

> 🎶 Small Speaker, Big Sound — Elevate Your DIY Audio Game!

## Quick Answers

- **What is this?** 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Ardu... by gikfun
- **How much does it cost?** ¥6699 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/263688870-2-4ohm-3w-full-range-audio-speaker-stereo-woofer-loudspeaker)

## Best For

- gikfun enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** 3W output delivers crisp, clear sound for your DIY audio projects.
- • **Lightweight & Sleek:** Silver finish and compact 2.8 x 11.4 x 6.4 cm design fits any setup.
- • **Perfect Fit for Arduino:** Seamlessly integrates with Arduino and Raspberry Pi for next-level prototyping.
- • **Stereo Sound Experience:** Dual 2-inch full-range woofers create immersive stereo audio.
- • **DIY Enthusiast’s Dream:** Ideal for educational projects and custom home audio-visual builds.

## Overview

The Gikfun EK1725 is a 2-pack of 2-inch, 3W, 4 Ohm full-range stereo woofers designed for Arduino and Raspberry Pi projects. Lightweight and compact with a sleek silver finish, these speakers deliver clear, immersive sound perfect for DIY electronics, educational kits, and small-scale audio systems.

## Description

Buy Gikfun EK1725 3W 4ohm 2" Full Range Audio Speaker Woofer Stereo Speaker for Arduino 2 Pack Silver online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- 2pcs 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino
- It will work well for home audio-visual equipment and other HiFi speakers.
- Rated Power: 3W, Diameter: 2 inches
- Rated Impedance: 4 ohm
- Not include the Volume Control Cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CHYIU26 |
| Additional Features | Compatible with Arduino |
| Age Range Description | Adult |
| Antenna Location | For DIY electronics projects, Arduino-based prototyping, and small-scale audio systems |
| Audio Driver Size | 40 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Brand | Gikfun |
| Built-In Media | 2 speakers |
| Color | Silver |
| Compatible Devices | DIY electronics projects, Arduino, Raspberry Pi |
| Connectivity Protocol | Coaxial cable |
| Connectivity Technology | Coaxial |
| Control Method | Voice |
| Controller Type | Volume control |
| Customer Package Type | Flat Free Package (FFP) |
| Customer Reviews | 4.3 4.3 out of 5 stars (733) |
| Enclosure Material | Plastic |
| Impedance | 4 Ohms |
| Is Waterproof | false |
| Item Dimensions D x W x H | 2.8D x 11.4W x 6.4H centimeters |
| Item Weight | 0.1 Kilograms |
| MP3 player | No |
| Manufacturer | Gikfun |
| Maximum Range | 20 Meters |
| Model Name | EK1725 |
| Model Number | LYSB01CHYIU26-ELECTRNCS |
| Mounting Type | Flush Mount |
| Number of Audio Channels | 2.0 |
| Number of Items | 2 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 3 Watts |
| Speaker Size | 2 Inches |
| Speaker Type | Woofer |
| Specific Uses For Product | DIY electronics projects, Arduino-based prototyping, small-scale audio systems, educational projects for learning about audio technology |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 2 Inches |
| Tweeter Diameter | 2 Inches |
| UPC | 728821643915 634894434896 |
| Unit Count | 2 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 2 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Gikfun
- **Connectivity technology:** Coaxial
- **Mounting type:** Flush Mount
- **Speaker maximum output power:** 3 Watts

## Images

![2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Ardu... - Image 1](https://m.media-amazon.com/images/I/61vC9am1e7L.jpg)

## Questions & Answers

**Q: how many volts do i have to put in it?**
A: Well, the rating of the speaker is 4 ohms and 3 watts.  You are limited by the
power spec of 3 Watts.  To calculate the max voltage use this equation:
P = V x V/R.  Solving for V, one gets V = sqrt(P * R).  So, for these speakers
you get V = sqrt(3 watts * 4 ohms) = sqrt(12) = 3.46 volts.  The thing to
remember is that the 4 ohm "resistance" should be considered as an
impedance value.  That is it will most likely be a some combination of the
DC resistance of the voice coil and the AC reactance of the voice coil
measured at 1000 Hz, which is sort of a standard.  The thing you want to
consider is that at lower frequencies, the AC reactance will decrease and
for a given voltage, the current will increase and thus the power rating can
end up being exceeded.  At higher frequencies the AC reactance will increase
and for a given voltage, current will decrease and power will go down.
Generally, the power rating for a speaker is determined by how hot the voice
coil can be allowed to get before it fails.

I have used these with a small 5 volt stereo Class D amplifier rated at 3 watts
per channel.   With a reasonable enclosure they sound pretty good and can provide plenty of volume considering their size.

I hope this helps.

**Q: Is  one of the dimension really 4.5 inches**
A: No, the speakers are 2" x 2". The "4.5 x 1.1 x 2.5 inches" in the product description is for the package containing two speakers.

**Q: If I use this to replace 4 ohm computer speakers driven by 8w amp and keep volume well below max will I do damage?**
A: Probably no damage unless you hit them with more than 4 watts of power.

**Q: Are these speakers waterproof**
A: No. I never tested them, but they don't look like other waterproof speakers I have seen.

## Frequently Bought Together

- Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725
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**Shop now:** [https://www.desertcart.jp/products/263688870-2-4ohm-3w-full-range-audio-speaker-stereo-woofer-loudspeaker](https://www.desertcart.jp/products/263688870-2-4ohm-3w-full-range-audio-speaker-stereo-woofer-loudspeaker)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-10*