Visaton K 23 8 Ohm, 0.9 Inch, Miniature Speaker
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The K 23 is a round 2.3 cm miniature speaker with a Mylar diaphragm and a metal basket, made for signal output in equipment where space is tight. The 8 Ω unit handles 0.3 W rated power, weighs 4 g and connects through soldering points on the rear. Its IP64 front-side protection applies when it is built into a sealed enclosure.
Typical applications
- Signal output in compact equipment
- Electronic instruments
Full specifications
| Rated power | 0.3 W |
|---|---|
| Maximum power | 0.5 W |
| Nominal impedance | 8 Ω |
| Frequency response (−10 dB) | 420–20000 Hz |
| Mean sound pressure level | 79 dB (1 W/1 m) |
| Resonance frequency fs | 750 Hz |
| Voice coil diameter | 10.4 mm |
| Height of winding | 1.5 mm |
| Cut-out | 21 mm |
| Net weight | 0.004 kg |
| Terminals | Solder joints |
| Protective system | IP64 — front side in a sealed enclosure |
| Temperature range | –25 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Allow for a 21 mm opening and the 23 mm basket, with about 5 mm behind the panel for the body and solder points. Support the basket evenly; bonding to the panel may be needed for the front-side sealing.
Solder to the rear points with a fine iron and observe polarity. Use an output stage suitable for the 8 Ω load and keep the drive within the 0.3 W rating.
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