Model
Vifa P21WO-20-08
Rating
DIAM
8"
FS(Hz)
28
VAS(l)
113
QTS
0.32
PWR(W)
80
SPL(dB)
91
IMP(Ohm)
8x1
avb
UNK
Thiele-Small Parameters
Fs(Hz)
28
Vas(l)
113
Qts
0.32
Qms
1.6
Qes
0.4
Bl(Tm)
7.4
Mms(gr)
22
Cms(mm/N)
1.5
Rms(kg/s)
2.431
Le(mH)
0.9
Re(Ohm)
5.7
Sd(sq.mm)
22500
Vd(l)
0.09
X-max(mm)
4
X-mech(mm)
0
General Parameters
Diameter (inch)
8
Max Power(W.)
80
RMS Power(W.)
40
Number of Coils
1
Impedance Z-Nom(Ohm)
8
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
91
Sensitivity(dB) 2.8-V
0
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
215
Cutout Diameter (mm)
187
Mounting Depth (mm)
82
Magnet Diameter (mm)
113
Optimum Enclosures
Enclosures
Closed, Vented, BP4, BP6P
