A 43mm (1.5") ultra-thin full-range speaker driver delivering crisp highs and surprisingly strong bass from a single cone. The slim profile fits tight enclosures where depth is a constraint, while the 8Ω / 5W rating and 100Hz–20kHz response make it suitable for voice, audio alerts, music reproduction, and custom speaker builds. Pair two in parallel for enhanced bass in small enclosures.
Specifications
| Diameter | 43mm (1.5 inch) |
| Shape | Round |
| Composition | Single cone, full range |
| Rated Power | 5W |
| Rated Impedance | 8Ω |
| Frequency Response | 100Hz – 20kHz |
| Sensitivity | 90dB |
Common Uses
Custom DIY speaker enclosures & cabinets
Arduino & Raspberry Pi audio output projects
Voice alert & notification systems
Keyestudio SC8002B & similar amplifier modules
Replacement speaker for small consumer electronics
Intercom & communication device builds
Common Questions
What amplifier do I need to drive this speaker?
Any amplifier rated for an 8Ω load will work. For Arduino and Raspberry Pi projects, the Keyestudio SC8002B module (also available in our store) is a great match — it outputs up to 3W into an 8Ω speaker from a 5V supply. For 5W output, use a higher-power amplifier module rated for at least 5W into 8Ω.
Can I run two of these in parallel for more bass?
Yes — wiring two 8Ω speakers in parallel gives a combined 4Ω load. This increases bass output and efficiency, but your amplifier must support a 4Ω load. Check your amplifier's minimum impedance spec before connecting two speakers in parallel.
Please note: This is a raw speaker driver — no enclosure included. Performance improves significantly when mounted in an appropriately sized enclosure compared to free-air use.