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EX2 |
EX3 |
EX4 |
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Overall diameter
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23.2 cm |
23.2 cm |
23.2 cm |
Overall Depth
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8.5 cm |
8.5 cm |
8.5 cm |
Depth from Rear of
Mounting Frame |
|
6.4 cm |
6.6 cm |
7.9 cm |
PCD Mounting
Centres |
|
20.8 cm |
20.8 cm |
20.8 cm |
Baffle hole
cut-out |
|
19 cm |
19 cm |
19 cm |
Magnet Ring
Diameter |
|
7.6 cm |
9.0 cm |
9.0 cm |
Voice coil
diameter |
|
3.9 cm |
3.9 cm |
3.9 cm |
Voice coil impedance
(options) |
|
4, 8 or 15
ohm |
4, 8 or 15
ohm |
4, 8 or 15
ohm |
D.C.
resistance |
Zmin |
7.2 ohm |
7.2 ohm |
7.2 ohm |
Nominal Power
Handling |
|
100W |
100W |
100W |
Emission piston
area |
Sd |
0.021M² |
0.021M² |
0.021M² |
Air gap width |
|
900 microns |
900 microns |
900
microns |
Air gap
height |
|
5 mm |
5 mm |
5.5 mm |
Magnet type |
|
'Hi-Ferric'¢â Rare Earth
Neodymium |
'Hi-Ferric'¢â Rare Earth
Neodymium |
Hi-Ferric'¢â Rare Earth
Neodymium |
Flux density (1
Tesla=10,000 gauss) |
|
1.75 Tesla |
2.1 Tesla |
2.2
Tesla |
Diaphragm |
|
Twin-paper |
Twin-paper |
Twin-paper |
Frequency
response |
|
30 Hz - 20
kHz |
30 Hz - 22
kHz |
30 Hz - 22.5
kHz |
Nominal air
resonance |
|
36 Hz |
36 Hz |
36 Hz |
Sensitivity at
1m/1kHz/1watt |
|
97 db |
98 db |
99 db |
Maximum voice coil
travel |
|
± 1 mm |
± 1 mm |
± 1 mm |
Suspension
compliance |
Cms |
993.888 uM/N |
993.888 uM/N |
993.888
uM/N |
Total Q
Factor |
Qts |
0.260 |
0.245 |
0.220 |
Electrical Q
Factor |
Qes |
0.22 |
0.22 |
0.22 |
Mechanical Q
Factor |
Qms |
3.11 |
3.11 |
3.11 |
Equivalent Volume
Suspension |
Vas |
0.015M³ |
0.015M³ |
0.015M³ |
Effective Moving Mass
Kg. |
|
0.0115 |
0.0115 |
0.0115 |
Shipping
weight |
|
3.0 kg |
3.0 kg |
3.5 kg
* |