Pimoroni
3 Speaker 4Ω (5W)
$5.15
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In stock
A 3-inch (77.8 mm) full-range speaker rated at 5 W with a 4 Ω impedance. Compact enough to embed in custom enclosures, arcade cabinets, internet radio builds...
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A 3-inch (77.8 mm) full-range speaker rated at 5 W with a 4 Ω impedance. Compact enough to embed in custom enclosures, arcade cabinets, internet radio builds, and other audio projects.
Key Features
- 5 W Power – Solid output for its size
- 4 Ω Impedance – Compatible with most Class D amplifier boards
- Mounting Points – Spaced 60 mm apart for easy enclosure mounting
- Lightweight – 55 g
Specifications
- Power: 5 W
- Impedance: 4 Ω
- Dimensions: 77.8 × 77.8 × 25.5 mm
- Mounting Hole Spacing: 60 mm
- Weight: 55 g
Ideal For
- Internet radio and streaming audio projects
- Mini arcade cabinets
- Raspberry Pi and microcontroller audio builds
- Custom speaker enclosures and alert systems
Package Contents
- 1× 3" Speaker (4 Ω, 5 W)
Jargon buster
Plain-language definitions for the technical terms used above.
- Impedance
- Impedance is the total opposition a component or circuit presents to alternating current, measured in ohms, combining resistance with frequency-dependent reactance. It appears in many contexts, such as matching a speaker's impedance (for example 4 ohm or 8 ohm) to an amplifier or the input and output impedance of signal circuits, and a correct match helps avoid weak signals, distortion or damage.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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