Model
Rockford Fosgate SP-812
Rating
DIAM
12"
FS(Hz)
34
VAS(l)
146
QTS
0.65
PWR(W)
0
SPL(dB)
90.2
IMP(Ohm)
8x1
avb
NOPROD
Thiele-Small Parameters
Fs(Hz)
34
Vas(l)
146
Qts
0.65
Qms
2.9
Qes
0.84
Bl(Tm)
10.4
Mms(gr)
64
Cms(mm/N)
0.34
Rms(kg/s)
4.74
Le(mH)
1.02
Re(Ohm)
6.7
Sd(sq.mm)
54500
Vd(l)
0.332
X-max(mm)
6
X-mech(mm)
0
General Parameters
Diameter (inch)
12
Max Power(W.)
0
RMS Power(W.)
100
Number of Coils
1
Impedance Z-Nom(Ohm)
8
Reference efficiency η0(%)
0.66
Sensitivity(dB) 1-W
90.2
Sensitivity(dB) 2.8-V
91
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
308
Cutout Diameter (mm)
279
Mounting Depth (mm)
126
Magnet Diameter (mm)
133
Optimum Enclosures
Enclosures
Closed, BP4
