Sundown Audio U 12 D4
Sundown Audio U 12 D4
Model

Sundown Audio U 12 D4

Rating
DIAM
12"
FS(Hz)
40
VAS(l)
12.3
QTS
0.34
PWR(W)
3000
SPL(dB)
85
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)
40
Vas(l)
12.3
Qts
0.34
Qms
2.9
Qes
0.38
Bl(Tm)
33.7
Mms(gr)
285
Cms(mm/N)
0.056
Rms(kg/s)
24.45
Le(mH)
3.67
Re(Ohm)
6.1
Sd(sq.mm)
39336
Vd(l)
1.179
X-max(mm)
30
X-mech(mm)
0

General Parameters

Diameter (inch)
12
Max Power(W.)
3000
RMS Power(W.)
1500
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.2
Sensitivity(dB) 1-W
85
Sensitivity(dB) 2.8-V
86.2

Mounting Information

Speaker Displacement (l)
5.66
Total Diameter (mm)
326
Cutout Diameter (mm)
280
Mounting Depth (mm)
197
Magnet Diameter (mm)
0

Optimum Enclosures

Enclosures
Vented, BP6P

Speaker response