Visaton BF 32 4 Ohm, 1.3 Inch, Full Range Miniature Speaker
BF 32 family front view · Enlarge image
BF 32 family front view
BF 32 family rear view; supplied version is 4 Ω
Dimension drawing
Response and impedance · 4 Ω
Directivity pattern
Product photographs and manufacturer drawings. Images are not to scale.
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The BF 32 brings a 20 mm voice coil into a small square frame with four fixing holes. Its shallow form suits compact audio equipment where both mounting area and depth are limited.
Typical applications
- Compact multimedia equipment
- Built-in music and speech in small enclosures
Full specifications
| Rated power | 2 W |
|---|---|
| Maximum power | 5 W |
| Nominal impedance | 4 Ω |
| Frequency response | 150–20000 Hz |
| Mean sound pressure level | 78 dB (1 W/1 m) |
| Resonance frequency fs | 280 Hz |
| Voice coil diameter | 20 mm |
| Height of winding | 3 mm |
| Cutout diameter | 31.5 mm |
| Net weight | 0.028 kg |
| Connections | Solder lugs |
| Temperature range | -25 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Use the current drawing to check the 31.5 mm cut-out and four fixing positions.
Connect the solder lugs to a suitable 4 Ω amplifier; avoid applying prolonged heat to the terminals.
Seal the frame to its baffle and leave the cone clear of grilles or adjacent parts. The datasheet covers more than one impedance; part 2243 is 4 Ω.
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