Visaton K 50 FL 50 Ohm, 2 Inch, Miniature Speaker
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The K 50 FL is a very shallow 5 cm miniature speaker with a plastic diaphragm and good speech reproduction, made for signal output where installation depth is limited, including outdoor equipment and unfavourable ambient conditions. This 50 Ω version handles 1 W rated power and weighs 14 g. Its IP65 front-side protection applies when it is built into a sealed enclosure.
Typical applications
- Signal output in machines
- Outdoor and harsh-environment equipment
Full specifications
| Rated power | 1 W |
|---|---|
| Maximum power | 2 W |
| Nominal impedance | 50 Ω |
| Frequency response (−10 dB) | 150–20000 Hz |
| Mean sound pressure level | 80 dB (1 W/1 m) |
| Resonance frequency fs | 340 Hz |
| Voice coil diameter | 13 mm |
| Height of winding | 2 mm |
| Cut-out | 46 mm |
| Net weight | 0.014 kg |
| Terminals | Solder joints |
| Protective system | IP65 — front side in a sealed enclosure |
| Temperature range | −40 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Allow for a 46 mm opening and the 50 mm frame, with about 8 mm behind the panel for the body and solder points. Seal the rim to the panel so the front-side protection is effective.
Solder to the rear points and observe polarity. Match the 50 Ω impedance to the output stage and keep the drive within the 1 W rating.
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