BF 37 - 4 Ohm

Art. No. 2260

3.7 cm (1.5") fullrange speaker with a wide and balanced frequency response and very good low range reproduction. With powerful Neodymium driver and high membrane excursion limit, optimized for small vented enclosures/enclosures with passive radiator. Suitable for applications where slim construction and good music and speech reproduction are requested.

*) IP protection class for front side when built into a sealed enclosure

Typical applications
Flat TVs
Info terminals
other compact devices speech and music reproduction

Technical Data

Rated power
5 W
Maximum power
8 W
Nominal impedance Z
4 Ohm
Frequency response
100–20000 Hz
Mean sound pressure level
74 dB (1 W/1 m)
Excursion limit
+/-3.4 mm
Resonance frequency fs
155 Hz
Net weight
33.1 g
D.C. resistance Rdc
3.8 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
0.06 l
Effective piston area Sd
6.2 cm²
Dynamically moved mass Mms
1.0 g
Force factor Bxl
1.99 Tm
Inductance of the voice coil L
0.17 mH
Soldering ears
Protective system
IP X4 *)
Frequency- and impedance response
Directivity pattern