W 200 - 4 Ohm

Art. No. 9064

20 cm (8") woofer with very good price/performance ratio. Suitable for simple 2-way speakers and car rear tray systems. Especially suited as replacement driver for many HiFi speakers.

Technical Data

Rated power 50 W
Maximum power 80 W
Nominal impedance Z 4 Ohm
Frequency response fu–8000 Hz
(fu: Lower cut-off frequency depending on cabinet) .
Mean sound pressure level 88 dB (1 W/1 m)
Opening angle (-6 dB) 49°/4000 Hz
Excursion limit +/−10 mm
Resonance frequency fs 45 Hz
Magnetic induction 1,0 T
Magnetic flux 400 µWb
Height of front pole-plate 5 mm
Voice coil diameter 25 mm
Height of winding 9 mm
Cutout diameter 185 mm
Net weight 1,045 kg
D.C. resistance Rdc 3,2 Ohm
Mechanical Q factor Qms 3,46
Electrical Q factor Qes 0,77
Total Q factor Qts 0,63
Equivalent volume Vas 54
Effective piston area Sd 207 cm²
Dynamically moved mass Mms 14 g
Force factor Bxl 4,2 Tm
Inductance of the voice coil L 0,5 mH
Show all data


frequency- and impedance response

directivity pattern