Alpine R-W12D4
Alpine R-W12D4
Model

Alpine R-W12D4

Rating
DIAM
12"
FS(Hz)
28
VAS(l)
48.1
QTS
0.56
PWR(W)
2250
SPL(dB)
84.2
IMP(Ohm)
4x2
avb
PROD

Thiele-Small Parameters

Fs(Hz)
28
Vas(l)
48.1
Qts
0.56
Qms
7.2
Qes
0.61
Bl(Tm)
10.6
Cms(mm/N)
0.148
Rms(kg/s)
5.33
Le(mH)
4.46
Mms(gr)
218
Vd(l)
0.958
Sd(sq.mm)
47900
X-max(mm)
20
X-mech(mm)
36
Re(Ohm)
1.8

General Parameters

Diameter (inch)
12
Max Power(W.)
2250
RMS Power(W.)
750
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.17
Sensitivity(dB) 1-W
84.2
Sensitivity(dB) 2.8-V
90.7

Mounting Information

Speaker Displacement (l)
0
Total Diameter (mm)
320
Cutout Diameter (mm)
275
Mounting Depth (mm)
162
Magnet Diameter (mm)
190

Optimum Enclosures

Enclosures
Closed, BP4

Speaker response