Model
Challenger SD-250FA
Rating
DIAM
10"
FS(Hz)
33.4
VAS(l)
24.5
QTS
0.48
PWR(W)
400
SPL(dB)
84.1
IMP(Ohm)
4x1
avb
PROD
Thiele-Small Parameters
Fs(Hz)
33.4
Vas(l)
24.5
Qts
0.48
Qms
4.67
Qes
0.535
Bl(Tm)
12.9
Mms(gr)
128
Cms(mm/N)
0.178
Rms(kg/s)
5.756
Le(mH)
0
Re(Ohm)
3.3
Sd(sq.mm)
31127
Vd(l)
0
X-max(mm)
0
X-mech(mm)
0
General Parameters
Diameter (inch)
10
Max Power(W.)
400
RMS Power(W.)
200
Number of Coils
1
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.16
Sensitivity(dB) 1-W
84.1
Sensitivity(dB) 2.8-V
87.9
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
0
Cutout Diameter (mm)
0
Mounting Depth (mm)
0
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, Vented, BP4, BP6
