Model
Rockford Fosgate RFD3218
Rating
DIAM
18"
FS(Hz)
24
VAS(l)
199.2
QTS
0.45
PWR(W)
2000
SPL(dB)
89.3
IMP(Ohm)
4x2
avb
NOPROD
Some parameters have a deviation from parameters associated with them. Please, look at the exclamation marks to get advice.
Thiele-Small Parameters
Fs(Hz)
24
Vas(l)
199.2
Qts
0.45
Qms
6.4
Qes
0.49
Bl(Tm)
16.2
Mms(gr)
409
Cms(mm/N)
0.108
Rms(kg/s)
9.64
Le(mH)
0
Re(Ohm)
2.1
Sd(sq.mm)
114293
Vd(l)
2.172
X-max(mm)
19
X-mech(mm)
19
General Parameters
Diameter (inch)
18
Max Power(W.)
2000
RMS Power(W.)
1000
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.54
Sensitivity(dB) 1-W
89.3
Sensitivity(dB) 2.8-V
95.1
Mounting Information
Speaker Displacement (l)
6.92
Total Diameter (mm)
459
Cutout Diameter (mm)
413
Mounting Depth (mm)
232
Magnet Diameter (mm)
217
Optimum Enclosures
Enclosures
Closed, BP4
