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Technical specifications

Nominal impedance
8 Ohm
Power capacity
1600 W AES
Nominal diameter
540 mm 21 in
Sensitivity
98 dB 1 W @ 1 m @ ZN
Minimum impedance
6.3 ohm
Frequency range
30-1000 Hz
Program power
3200 W
Recommended enclosure volume
170 l
Voice coil diameter
101.6 mm 4 in
BL factor
36.4 N/A
Moving mass
0.388 kg
Winding length
32 mm
Air gap height
15 mm
Xdamage pp
60 mm

Parameters Thiele & Small

Fs
30 Hz
Re
5.4 ohm
Qms
4.5
Qes
0.30
Qts
0.28
Vas
309 l
Cms
72 µm / N
Rms
16.2 kg/s
Efficiency %
2.7
Sd
0.1734 m²
Xmax
13 mm
Vd
2254 cm³
Le @1 kHz
4 mH

Construction details

Depth
266 mm 10.5 in
Net weight
17.1 kg 37.6 lb
Total weight
19.6 kg 43.1 lb
Magnet
Ferrite
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