BF 45 - 4 Ohm

Art. No. 2240

4.5 cm (1.8") fullrange speaker with 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 music and speech reproduction are requested.

Technical Data

Rated power
4 W
Maximum power
8 W
Nominal impedance Z
4 Ohm
Frequency response
90–20000 Hz
Mean sound pressure level
79 dB (1 W/1 m)
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
32 g
Temperature range
−25 ... 70 °C
Frequency- and impedance response
Directivity pattern