AL 200 - 8 Ohm

Art. No. 1281

20 cm (8") High-End woofer with stiff aluminium cone, solid aluminium die-cast basket and elastic rubber surround. Extremely low mechanical and electrical losses due to vented pole plate, vented damper and capton voice coil carrier. Fast pulse response due to light weight aluminium cone. Suitable for 2- and 3-way high end combinations and as low-midrange driver in 4-way high end systems.

Volume/Principle BR-Channel fb
30 l/bass reflex BR 25.50 40 Hz
50 l/bass reflex BR 25.50 31 Hz
70 l/bass reflex BR 25.50 27 Hz

Technical Data

Rated power
120 W
Maximum power
180 W
Nominal impedance Z
8 Ohm
Frequency response
fu–9000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
88 dB (1 W/1 m)
Opening angle (-6 dB)
122°/4000 Hz
Excursion limit
+/−10 mm
Resonance frequency fs
32 Hz
Magnetic induction
1.3 T
Magnetic flux
930 µWb
Height of front pole-plate
6 mm
Voice coil diameter
38 mm
Height of winding
20 mm
Cutout diameter
190 mm
Net weight
2.5 kg
D.C. resistance Rdc
6.6 Ohm
Mechanical Q factor Qms
3.73
Electrical Q factor Qes
0.39
Total Q factor Qts
0.35
Equivalent volume Vas
77 l
Effective piston area Sd
216 cm²
Dynamically moved mass Mms
21 g
Force factor Bxl
8.8 Tm
Inductance of the voice coil L
1.2 mH
Frequency- and impedance response
Directivity pattern
Waterfall spectrum