Model
Sundown Audio Z V.4 18 D1
Rating
DIAM
18"
FS(Hz)
26.1
VAS(l)
160
QTS
0.46
PWR(W)
4000
SPL(dB)
89.4
IMP(Ohm)
1x2
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)
26.1
Vas(l)
160
Qts
0.46
Qms
6.29
Qes
0.5
Bl(Tm)
15.8
Mms(gr)
443
Cms(mm/N)
0.084
Rms(kg/s)
11.545
Le(mH)
0
Re(Ohm)
1.7
Sd(sq.mm)
115889
Vd(l)
4.056
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)
1
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
89.4
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
