Focal Car Speaker 21 WX Be User Manual

21 WX Be  
8’’ Utopia Be® subwoofer  
Multiferrite magnet  
W cone  
Specifications  
250 W  
500 W  
86.5 dB  
W
Nominal power  
Maximum power  
Sensitivity (2.83V/m)  
Cone  
For compact closed box  
High power handling  
Rubber  
4 ohm  
3.4 ohm  
50 mm  
25 mm  
Aluminum  
2
Surround  
Nom. impedance  
DC resistance  
VC diameter  
VC height  
2 in  
1 in  
Former  
Layers  
Copper  
1.13 mH  
8.5 mm  
15x45 mm  
1.3 kg  
0.85 T  
8 mm  
Wire  
Inductance  
Xmax  
0.33 in  
0.6 x1.8 in  
2.9 Ibs  
Magnet (12 units)  
Magnet weight  
Flux density  
Gap height  
Net weight  
0.31 in  
8.8 Ibs  
Frequency Response  
4 kg  
Parameters  
Fs  
36.63 Hz  
18.8 I  
Vas  
Qts  
Qes  
Qms  
Re  
0.6  
0.77  
2.81  
3.4 ohm  
208.67 cm2  
1.34E-07 m5/N  
141.01 kg/m4  
11549.11 ohm.ac  
3.07E-04 m/N  
61.4 g  
Sd  
Cas  
Mas  
Ras  
Cms  
Mms  
Rms  
Ces  
Les  
Res  
BI  
5.029 kg/s  
984 mF  
Mechanical Drawing  
19.19 mH  
12.41 ohm  
7.9 N/A  
SPL  
82.63 dB/W/m  
Suggested application  
Load  
V (l)  
Fb (Hz)  
F-3 (Hz)  
43  
Ql  
Sealed  
Sealed  
30  
-
-
0.77  
0.907  
15  
45  
Unit: mm  
Focal® is a trademark of Focal-JMlab®  
 

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