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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
  • Mini Hi-fi systems
*Gross price for private customers. Industrial prices are available on request.
Technical Data
Amplitude & Impedance Frequency
Directivity pattern
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 3.3
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

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