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Visaton BF 32 S 4 Ohm, 1.3 Inch, Full Range Speaker

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BF 32 S · 4 Ω · part 2249 — Product photo

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BF 32 S · 4 Ω · part 2249 — Product photoProduct photo BF 32 S · 4 Ω · part 2249 — Dimension drawingDimension drawing BF 32 S · 4 Ω · part 2249 — Response and impedanceResponse and impedance BF 32 S · 4 Ω · part 2249 — Directivity patternDirectivity pattern

Product photographs and manufacturer drawings. Images are not to scale.

BF 32 S · 4 Ω · part 2249 — Product photo

Product photo

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Part number: 2249

A black-cone miniature speaker for displays and compact devices.

Nominal size
3.2 cm / 1.3 inch
Impedance
4 Ω
Rated power
2 W
Cut-out
31.5 mm
Sensitivity
78 dB (1 W/1 m)
Resonance
280 Hz
ex VAT
£11.94 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The BF 32 S fits speech and music reproduction into a small square frame with four mounting holes. Its black diaphragm suits discreet installations behind a grille, while a neodymium magnet keeps the assembly compact. This 4 Ω version handles 2 W rated power and weighs 28 g.

Typical applications

  • Displays
  • Information terminals
  • Compact electronic devices
Full specifications
BF 32 S · 4 Ω
Rated power2 W
Maximum power5 W
Nominal impedance4 Ω
Frequency response (−10 dB)150–20000 Hz
Mean sound pressure level78 dB (1 W/1 m)
Resonance frequency fs280 Hz
Voice coil diameter20 mm
Height of winding3 mm
Cut-out31.5 mm
Net weight28 g
TerminalsSolder lugs
Temperature range–25 to 70 °C
Frame32 × 32 mm
Overall depth15 mm
Fixing pitch24.5 mm
Diaphragm colourBlack
Dimensions and drawings
BF 32 S · 4 Ω · part 2249 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 31.5 mm opening, 32 mm square frame and 24.5 mm fixing pitch. Leave room for the 15 mm overall depth and solder lugs. Keep screw heads and the front grille clear of the surround.

Mount on a rigid panel with a continuous seal around the frame to prevent air leaks and rattles. Keep the cone and surround clear of the grille and internal parts.

Use an amplifier suitable for the 4 Ω load and follow the polarity marks. Solder without prolonged heating, insulate the joints and secure the wires so they cannot touch the cone or pull on the lugs.

Test the driver in the intended enclosure before fixing the cabinet design. Keep the rear acoustic space clear and check low-frequency cone travel at the intended operating level; a small driver’s usable bass depends on the enclosure and required output.

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