Model
Challenger OPUS SD-250BX
Rating
DIAM
10"
FS(Hz)
38
VAS(l)
36
QTS
0.47
PWR(W)
400
SPL(dB)
88
IMP(Ohm)
4x1
avb
PROD
Some parameters have a deviation from parameters associated with them. Please, look at the exclamation marks to get advice.
Thiele-Small Parameters
Fs(Hz)
38
Vas(l)
36
Qts
0.472
Qms
4.15
Qes
0.473
Bl(Tm)
11.6
Mms(gr)
84
Cms(mm/N)
0.209
Rms(kg/s)
4.831
Le(mH)
0
Re(Ohm)
3.4
Sd(sq.mm)
34850
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(%)
0.4
Sensitivity(dB) 1-W
88
Sensitivity(dB) 2.8-V
91.7
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
