Model
Sundown Audio X 18 V2 D4
Rating
DIAM
18"
FS(Hz)
27.7
VAS(l)
137.7
QTS
0.49
PWR(W)
3000
SPL(dB)
89.2
IMP(Ohm)
4x2
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)
27.7
Vas(l)
137.7
Qts
0.49
Qms
5.12
Qes
0.54
Bl(Tm)
29.8
Mms(gr)
454
Cms(mm/N)
0.073
Rms(kg/s)
15.433
Le(mH)
0
Re(Ohm)
6.1
Sd(sq.mm)
115326
Vd(l)
3.46
X-max(mm)
30
X-mech(mm)
0
General Parameters
Diameter (inch)
18
Max Power(W.)
3000
RMS Power(W.)
1500
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
89.2
Sensitivity(dB) 2.8-V
0
Mounting Information
Speaker Displacement (l)
6.51
Total Diameter (mm)
0
Cutout Diameter (mm)
424
Mounting Depth (mm)
260
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, BP4
