Visaton K 40 8 Ohm, 1.6 Inch, Miniature Speaker
Product photo · Enlarge image
Product photographs and manufacturer drawings. Images are not to scale.
Quantity discounts
Buying in quantity?
Contact us with the quantity you need and we can discuss pricing for your order.
Request a quantity quoteDescription
The K 40 is a compact 4 cm miniature speaker with a Mylar diaphragm and a metal basket, made for voice and signal output in machines and equipment indoors and outdoors. This 8 Ω version handles 1 W rated power and weighs 10 g. Its IP67 front-side protection applies when it is built into a sealed enclosure.
Typical applications
- Voice and signal output in machines
- Indoor and outdoor equipment
Full specifications
| Rated power | 1 W |
|---|---|
| Maximum power | 2 W |
| Nominal impedance | 8 Ω |
| Frequency response (−10 dB) | 350–6000 Hz |
| Mean sound pressure level | 83 dB (1 W/1 m) |
| Resonance frequency fs | 520 Hz |
| Voice coil diameter | 13.5 mm |
| Height of winding | 1.8 mm |
| Cut-out | 36.5 mm |
| Net weight | 0.01 kg |
| Terminals | Solder joints |
| Protective system | IP67 — 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 36.5 mm opening and the 40 mm basket, with about 6 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 and observe polarity. Use an output stage suitable for the 8 Ω load and keep the drive within the 1 W rating.
Related Products
Part number 2204
Visaton FR 58 4 Ohm, 2.3 Inch, Full Range Speaker
Part number 2205
Visaton FR 58 8 Ohm, 2.3 Inch, Full Range Speaker
Part number 2260
Visaton BF 37 4 Ohm, 1.5 Inch, Full Range Speaker
Part number 2897
Visaton K 50 SQ 8 Ohm, 2 Inch, Miniature Speaker
Part number 2249
Visaton BF 32 S 4 Ohm, 1.3 Inch, Full Range Speaker
Part number 2816
Visaton K 16 50 Ohm, 0.6 Inch, Miniature Speaker
Part number 2210
Visaton FRWS 5 8 Ohm, 2 Inch, Full Range Speaker
Part number 2261
Visaton BF 37 8 Ohm, 1.5 Inch, Full Range Speaker
Part number 2841
Visaton K 40 50 Ohm, 1.6 Inch, Miniature Speaker
Part number 2242
Visaton BF 32 8 Ohm, 1.3 Inch, Full Range Miniature Speaker
Part number 2952
Visaton K 57 FL 8 Ohm, 2.2 Inch, Miniature Speaker
Part number 2239