SC 4.9 FL - 8 Ohm

Art. No. 8051

4 x 9 cm (1.6" x 3.5") full-range speaker with wooden cone and stable plastic basket. Flat and lightweight design because of neodymium. The cooperation of the separate components leads to a very linear frequency response up to deepest frequencies by way of comparison, so that the loudspeaker can be also used in miniature hi-fi speakers.

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

Technical Data

Rated power
4 W
Maximum power
5 W
Nominal impedance Z
8 Ohm
Frequency response
120–20000 Hz
Mean sound pressure level
83 dB (1 W/1 m)
Excursion limit
+/- 1 mm
Resonance frequency fs
220 Hz
Magnetic induction
1.15 T
Magnetic flux
184 µWb
Height of front pole-plate
2 mm
Voice coil diameter
25.5 mm
Height of winding
2 mm
Cutout diameter
36 x 86 mm
Net weight
0.054 kg
D.C. resistance Rdc
6.9 Ohm
Mechanical Q factor Qms
3.06
Electrical Q factor Qes
2.29
Total Q factor Qts
1.31
Equivalent volume Vas
0.43 l
Effective piston area Sd
23.5 cm²
Dynamically moved mass Mms
0.9 g
Force factor Bxl
1.98 Tm
Inductance of the voice coil L
0.13 mH
Protective system
IP 63 *)
Temperature range
−25 ... 70 °C
Frequency- and impedance response