SL 87 FE - 8 Ohm

Art. No. 2091

8.5 cm (3.4") full-range speaker with plastic cone and rubber surround. Very high efficiency due to large ferrite magnet. Well-balanced frequency response.

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

Typical applications
Column speakers

Technical Data

Rated power
10 W
Maximum power
15 W
Nominal impedance Z
8 Ohm
Frequency response
75–18000 Hz
Mean sound pressure level
87 dB (1 W/1 m)
Resonance frequency fs
120 Hz
Height of front pole-plate
2.5 mm
Voice coil diameter
20 mm
Height of winding
6 mm
Cutout diameter
80 mm
Net weight
0.486 kg
D.C. resistance Rdc
7.2 Ohm
Mechanical Q factor Qms
3.30
Electrical Q factor Qes
0.82
Total Q factor Qts
0.65
Equivalent volume Vas
1.53 l
Effective piston area Sd
37.3 cm²
Dynamically moved mass Mms
2.4 g
Force factor Bxl
3.95 Tm
Connections
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Protective system
IP 64 *)
Temperature range
−40 ... 80 °C
Frequency- and impedance response
Directivity pattern