Alpine SWR-12D4
Alpine SWR-12D4
Model

Alpine SWR-12D4

Rating
DIAM
12"
FS(Hz)
28
VAS(l)
46
QTS
0.48
PWR(W)
3000
SPL(dB)
85
IMP(Ohm)
4x2
avb
UNK

Thiele-Small Parameters

Fs(Hz)
28
Vas(l)
46
Qts
0.48
Qms
6
Qes
0.52
Bl(Tm)
0
Cms(mm/N)
0
Rms(kg/s)
0
Le(mH)
3.33
Mms(gr)
0
Vd(l)
0.958
Sd(sq.mm)
47900
X-max(mm)
20
X-mech(mm)
0
Re(Ohm)
3.8

General Parameters

Diameter (inch)
12
Max Power(W.)
3000
RMS Power(W.)
1000
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
85
Sensitivity(dB) 2.8-V
0

Mounting Information

Speaker Displacement (l)
2.83
Total Diameter (mm)
321
Cutout Diameter (mm)
275
Mounting Depth (mm)
162
Magnet Diameter (mm)
190

Optimum Enclosures

Enclosures
Closed, BP4

Speaker response