Can I connect this 8 Ohm 3W speaker directly to my Arduino or Raspberry Pi?

No, you cannot connect the 8 Ohm 3W Mini Speaker Module directly to a microcontroller's GPIO pin. Microcontrollers do not output enough current to drive a 3W speaker. You must connect the speaker to a small audio amplifier module (such as a PAM8403), which is then connected to your Arduino or Raspberry Pi.

Is this pre-wired speaker better than buying a bare speaker component?

Yes, the pre-wired 8 Ohm 3W Mini Speaker Module is much more convenient than a bare speaker. It saves you the time and risk of soldering delicate wires to the speaker terminals, and the included 2-pin 2.0mm connector allows for easy plug-and-play installation and removal during prototyping.

What should I do if my amplifier board does not have a 2-pin 2.0mm socket?

If your amplifier board lacks a matching socket, you can easily modify the 8 Ohm 3W Mini Speaker Module. Simply cut off the 2-pin connector, strip the ends of the red and black wires, and solder them directly to the audio output pads on your amplifier board.

Can I test the sound quality of this speaker at your Sham Shui Po store?

Absolutely! Sun Cheong Computer Co. Ltd. encourages makers to test components before buying. You can bring your DIY project or amplifier board to our Sham Shui Po physical store, and our technicians will help you plug in the 8 Ohm 3W Mini Speaker Module to verify the audio output.

Will this speaker fit as a replacement for my broken LCD TV speaker?

The 8 Ohm 3W Mini Speaker Module is a very common replacement part for smaller LCD TVs and monitors. However, you must measure your original speaker to ensure it matches the 70mm x 30mm dimensions and verify that your TV's audio board supports an 8 Ohm, 3 Watt output.

8 Ohm 3W Mini Speaker Module | 70x30mm DIY Audio

Name: 8 Ohm 3W Mini Speaker Module | 70x30mm DIY Audio
Brand: Sun Cheong Computer Company Limited
SKU: 21PS002428-RECTANGLE
Price: 63.0 TWD
Availability: InStock

Short Product Description

Need a compact audio solution for your custom electronics? The 8 Ohm 3W Mini Speaker Module delivers clear sound in a space-saving 70x30x17mm footprint. Pre-wired with a 450mm cable and a standard 2-pin 2.0mm connector, it is perfect for Arduino STEM projects, DIY arcade cabinets, and LCD TV repairs. Skip the soldering and plug it straight into your amplifier board! Need components for your next build? Sun Cheong Computer Co. Ltd. has over 20 years of electronic part expertise. Visit our Sham Shui Po physical store for instant pickup and expert DIY technical advice!

Key Features

Standard Audio Specs: Delivers a reliable 3 Watts of power at 8 Ohms, perfect for small-scale electronic projects and voice prompts.
Compact Rectangular Design: Measures only 70mm x 30mm x 17mm, easily fitting into tight spaces, custom enclosures, and LCD monitors.
Pre-Attached 450mm Wire: Provides ample length to route cables neatly inside your project chassis without needing extensions.
Plug-and-Play Connector: Features a standard 2-pin 2.0mm pitch connector for quick, solder-free installation to amplifier boards.
Versatile Applications: Ideal for STEM education kits, DIY arcade cabinets, smart home voice assistants, and TV speaker replacements.
Instant Store Pickup: Don't wait for shipping when you are mid-build; grab your audio components instantly at our Sham Shui Po location.

Full Product Description

Compact Audio for DIY Electronics

Add clear sound to your custom builds with the 8 Ohm 3W Mini Speaker Module. Finding a speaker that fits into tight 3D-printed enclosures or slim TV bezels can be challenging. Measuring just 70mm by 30mm, this rectangular speaker provides a reliable 3-watt audio output without taking up valuable internal space, making it the ideal choice for makers, hobbyists, and repair technicians.

Pre-Wired for Instant Connection

Skip the soldering iron thanks to the pre-attached 450mm cable and 2-pin 2.0mm connector on this 3W Mini Speaker. Wiring bare speakers often requires delicate soldering that can damage the voice coil if done incorrectly. This module comes ready to use right out of the box—simply plug the 2-pin terminal directly into your compatible amplifier board or microcontroller shield for instant audio playback.

💡 Pro Tip from Our Technicians

"To get the best sound quality out of the 8 Ohm 3W Mini Speaker Module, you must pair it with a matching audio amplifier board (like a PAM8403 module). If you connect it to an amplifier rated for 10W or higher, you risk blowing out the speaker cone. Conversely, connecting it directly to an Arduino pin without an amp will result in barely audible sound. If you are building a custom arcade machine or STEM project and need help selecting the right amplifier, drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) loves helping makers debug their DIY audio circuits."

Technical Specifications

Product Type: Mini Rectangular Speaker Module
Impedance: 8 Ohm (8Ω)
Rated Power: 3 Watts (3W)
Dimensions (L x W x H): 70mm x 30mm x 17mm
Wire Length: 450mm
Connector Type: 2-Pin 2.0mm Pitch (2P 2.0)
Mounting: 4x Pre-drilled mounting holes on the frame

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Can I connect this 8 Ohm 3W speaker directly to my Arduino or Raspberry Pi?No, you cannot connect the 8 Ohm 3W Mini Speaker Module directly to a microcontroller's GPIO pin. Microcontrollers do not output enough current to drive a 3W speaker. You must connect the speaker to a small audio amplifier module (such as a PAM8403), which is then connected to your Arduino or Raspberry Pi.
Is this pre-wired speaker better than buying a bare speaker component?Yes, the pre-wired 8 Ohm 3W Mini Speaker Module is much more convenient than a bare speaker. It saves you the time and risk of soldering delicate wires to the speaker terminals, and the included 2-pin 2.0mm connector allows for easy plug-and-play installation and removal during prototyping.
What should I do if my amplifier board does not have a 2-pin 2.0mm socket?If your amplifier board lacks a matching socket, you can easily modify the 8 Ohm 3W Mini Speaker Module. Simply cut off the 2-pin connector, strip the ends of the red and black wires, and solder them directly to the audio output pads on your amplifier board.
Can I test the sound quality of this speaker at your Sham Shui Po store?Absolutely! Sun Cheong Computer Co. Ltd. encourages makers to test components before buying. You can bring your DIY project or amplifier board to our Sham Shui Po physical store, and our technicians will help you plug in the 8 Ohm 3W Mini Speaker Module to verify the audio output.
Will this speaker fit as a replacement for my broken LCD TV speaker?The 8 Ohm 3W Mini Speaker Module is a very common replacement part for smaller LCD TVs and monitors. However, you must measure your original speaker to ensure it matches the 70mm x 30mm dimensions and verify that your TV's audio board supports an 8 Ohm, 3 Watt output.

Target Users / Applications

DIY Arcade Cabinet Builders: Adding compact, reliable audio to custom retro gaming machines powered by Raspberry Pi.
STEM Educators & Students: Integrating voice prompts and sound effects into Arduino-based robotics and smart home prototypes.
Appliance Repair Technicians: Replacing blown or distorted internal speakers in small LCD TVs, desktop monitors, and portable radios.

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8 Ohm 3W Mini Speaker Module | 70x30mm DIY Audio Replacement