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Visaton Speaker Driver - BF 45 S - 4 Ohm 4.5 cm or 1.8" fullrange speaker
Art. No. 2246
Visaton BF 45 S - 4 Ohm 4.5 cm (1.8") fullrange speaker
Characteristics and Sound Properties
4.5 cm (1.8") fullrange speaker with black aluminium diaphragm and transparent plastic basket with two mounting holes. Balanced frequency response and very good low range reproduction.
Suitable for applications where slim construction and good musik and speech reproduction are requested.
Technical Specifications
Rated power | 4 W |
Maximum power | 8 W |
Nominal impedance Z | 4 Ohm |
Frequency response |
90–20000 Hz |
Mean sound pressure level | 79 dB (1W/1m) |
Resonance frequency fs | 160 Hz |
Height of front pole-plate | 3 mm |
Voice coil diameter | 17 mm |
Height of winding | 4 mm |
Cutout diameter | 45 mm |
Net weight | 32g |
Temperatrure range | −25 ... 70 °C |
![Temperature Range](/mm5/graphics/visaton-drivers/temperatur_25_70.gif)
Driver Dimensions
![Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)](/mm5/graphics/visaton-drivers/bf45s/visaton-driver-bf45s-8ohm-dimensions.gif)
Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)
Frequency and Impedance Response
![](/mm5/graphics/visaton-drivers/bf45s/visaton-driver-bf45s-8ohm-frequency.gif)
Loudspeaker Frequency and Impedance Response Graph
Directivity Pattern
![](/mm5/graphics/visaton-drivers/bf45s/visaton-driver-bf45s-8ohm-directivity.gif)
Loudspeaker Directivity Pattern (on and off axis response)