21″ SUBWOOFER |
|
ALUMINIUM BASKET |
|
*6 INCH COPPER VOICE COIL |
|
* 98 dB/SPL SENSITIVITY |
|
* 4400 WATT PROGRAM POWER HANDING |
|
* DOUBLE SILICONE SPIDERS |
|
*TRIPPLE ROLL SURROUND WITH COATING |
|
* NEODYMIUM MAGNET SYSTEM |
|
* IMPORTED PAPER CONE (ITALY QUALITY) |
|
*BIG PUNCHY OF SOUND |
GENERAL SPECIFICATIONS |
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Nominal diameter |
mm (in.) |
548(21″) |
|
Nominal impedance |
Ω |
8 |
|
Nominal(AES) |
W |
2200 |
|
Continuous program |
W |
4400 |
|
Sensitivity |
dB |
98 |
|
Frequency range |
Hz |
25 ~ 1000 |
|
Voice coil diameter |
mm (in.) |
151(6) |
|
Voice coil material |
Copper |
Inside/ outside |
4layers |
Xmax |
mm |
16.25 |
|
Xmech |
mm |
25.5 |
|
Winding Depth |
40/1.57 |
mm/inch |
|
Magnetic Gap Depth |
15/0.6 |
mm/inch |
SMALL SIGNAL PARAMETERS |
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DC resistance |
Re |
Ohm |
4.7 |
Resonance frequency |
Fs |
Hz |
25 |
Moving mass |
Mms |
g |
499.237 |
Force factor |
BL |
N/A |
44.009 |
Mechanical Q-factor |
Qms |
5.522 |
|
Electrical Q-factor |
Qes |
0.197 |
|
Total |
Q-factor |
Qts |
0.19 |
Equivalent air volume |
Vas |
I |
373.608 |
Diaphragm area |
Sd |
m² |
186.3 |
