Visaton BF 32 S WP 8 Ohm, 1.3 Inch, Waterproof Speaker
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The BF 32 S WP is a slim full-range speaker with a black aluminium membrane, rubber surround and neodymium magnet, giving a wide, balanced response with very good low-range reproduction for its size. The square basket has four mounting holes, and its water-resistant design is rated IPX4 and IPX7 at the front when built into a sealed enclosure. This 8 Ω version handles 2 W and weighs 31 g.
Typical applications
- Flat TVs and info terminals
- Voice and signal output in machines and equipment
Full specifications
| Rated power | 2 W |
|---|---|
| Frequency response (−10 dB) | 145–20000 Hz |
| Mean sound pressure level | 88 dB (0.1 W/0.1 m) |
| Resonance frequency fs | 280 Hz |
| Height of front pole-plate | 1.9 mm |
| Voice coil diameter | 19 mm |
| Height of winding | 3.3 mm |
| Net weight | 31 g |
| Terminals | Solder lugs |
| Protective system | IPX4 / IPX7 — front side in a sealed enclosure |
| Temperature range | −25 to 70 °C |
| Environmental attributes | Water-resistant design (aluminium membrane and PU surround) |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
No cut-out is published for this driver: the frame is 32 mm square with four 2 mm fixing holes on 24.6 x 24.6 mm centres, so size the opening from the unit itself. The body is 10.5 mm deep at most behind the 2 mm flange (14.2 mm overall including the solder lugs), so leave room behind the panel for the lugs and the leads.
The IPX4 and IPX7 protection applies to the front of the driver only, and only when it is built into a sealed enclosure; the rear is open to the enclosure. Mount it on a flat panel with a continuous seal around the frame and protect the rear from water and dust; bonding the driver in and fitting a front cover or grille may be needed to complete the protection. Tighten the fixings evenly so the frame is not distorted, and run the leads so that water cannot track along them into the enclosure. Operating temperature range −25 to 70 °C.
Solder to the solder lugs, observe polarity and keep the leads clear of the moving parts. Use a suitable iron and keep the soldering time short so that heat is not conducted into the driver. Use an amplifier suitable for the 8 Ω load and keep the drive within the 2 W rating.
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