SPEAKER BREEDBAND 4 OHM 30/50W 100-20000HZ 82DB 78X78MM

cm (3.3\") HiFi fullrange driver. Linear frequency response between 200 and 20000 Hz. Suitable for surround effect speakers, mini sub/sat systems. Due to the small size very suitable for model construction and as control speaker for electronic devices.

Rated power 30 W
Maximum power 50 W
Nominal impedance Z 4 Ohm
Frequency response 100–20000 Hz
Mean sound pressure level 82 dB (1 W/1 m)
Opening angle (-6 dB) 180°/4000 Hz
Excursion limit +/−2,5 mm
Resonance frequency fs 115 Hz
Magnetic induction 0,8 T
Magnetic flux 200 µWb
Height of front pole-plate 4 mm
Voice coil diameter 20 mm
Height of winding 4,5 mm
Cutout diameter 73 mm
Net weight 0,28 kg
D.C. resistance Rdc 3,5 Ohm
Mechanical Q factor Qms 3,61
Electrical Q factor Qes 0,85
Total Q factor Qts 0,69
Equivalent volume Vas 1 l
Effective piston area Sd 31 cm²
Dynamically moved mass Mms 2,5 g
Force factor Bxl 2,2 T m
Inductance of the voice coil L 0,4 mH
Temperature range −25 ... 70 °C