Model
Sundown Audio Z V.4 18 D2
Rating
DIAM
18"
FS(Hz)
27.4
VAS(l)
136.2
QTS
0.54
PWR(W)
4000
SPL(dB)
88.6
IMP(Ohm)
2x2
avb
NOPROD
Some parameters have a deviation from parameters associated with them. Please, look at the exclamation marks to get advice.
Thiele-Small Parameters
Fs(Hz)
27.4
Vas(l)
136.2
Qts
0.54
Qms
5.39
Qes
0.6
Bl(Tm)
22.1
Mms(gr)
470
Cms(mm/N)
0.072
Rms(kg/s)
15.002
Le(mH)
0
Re(Ohm)
3.6
Sd(sq.mm)
115490
Vd(l)
4.042
X-max(mm)
35
X-mech(mm)
0
General Parameters
Diameter (inch)
18
Max Power(W.)
4000
RMS Power(W.)
2000
Number of Coils
2
Impedance Z-Nom(Ohm)
2
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
88.6
Sensitivity(dB) 2.8-V
0
Mounting Information
Speaker Displacement (l)
7.4
Total Diameter (mm)
0
Cutout Diameter (mm)
424
Mounting Depth (mm)
289
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, BP4
