Model
18 Sound 21ID
Rating
DIAM
21"
FS(Hz)
38
VAS(l)
143
QTS
0.23
PWR(W)
10000
SPL(dB)
94.2
IMP(Ohm)
2x1
avb
PROD
Thiele-Small Parameters
Fs(Hz)
38
Vas(l)
143
Qts
0.23
Qms
5.6
Qes
0.24
Bl(Tm)
25.2
Mms(gr)
489
Cms(mm/N)
0.036
Rms(kg/s)
0
Le(mH)
0
Re(Ohm)
1.3
Sd(sq.mm)
166000
Vd(l)
2.32
X-max(mm)
14
X-mech(mm)
0
General Parameters
Diameter (inch)
21
Max Power(W.)
10000
RMS Power(W.)
1800
Number of Coils
1
Impedance Z-Nom(Ohm)
2
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
94.2
Sensitivity(dB) 2.8-V
0
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
0
Cutout Diameter (mm)
492
Mounting Depth (mm)
250
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Vented, BP6P
