Model
Prv Audio 21SW4000-NDY-4
Rating
DIAM
21"
FS(Hz)
32.2
VAS(l)
178.2
QTS
0.36
PWR(W)
4000
SPL(dB)
93.9
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)
32.2
Vas(l)
178.2
Qts
0.36
Qms
14
Qes
0.37
Bl(Tm)
34.4
Mms(gr)
558
Cms(mm/N)
0.044
Rms(kg/s)
8.071
Le(mH)
1.39
Re(Ohm)
3.2
Sd(sq.mm)
187000
Vd(l)
3.366
X-max(mm)
18
X-mech(mm)
0
General Parameters
Diameter (inch)
21
Max Power(W.)
4000
RMS Power(W.)
2000
Number of Coils
1
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
1.55
Sensitivity(dB) 1-W
93.9
Sensitivity(dB) 2.8-V
97.9
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
545
Cutout Diameter (mm)
493
Mounting Depth (mm)
230
Magnet Diameter (mm)
210
Optimum Enclosures
Enclosures
Vented, BP6
