BF 45 S - 4 Ohm

Art. No. 2246

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.

Typical applications
Voice and signal output in machines and other equipment where space is at a minimum

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
158 Hz
Height of front pole-plate
3 mm
Voice coil diameter
17 mm
Height of winding
4 mm
Cutout diameter
45 mm
Net weight
0.032 g
Temperature range
−25 ... 70 °C
Frequency- and impedance response