Model
Rockford Fosgate T215D4
Rating
DIAM
15"
FS(Hz)
25
VAS(l)
88.4
QTS
0.43
PWR(W)
2000
SPL(dB)
86.5
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)
25
Vas(l)
88.4
Qts
0.43
Qms
5
Qes
0.471
Bl(Tm)
29.6
Mms(gr)
369
Cms(mm/N)
0.142
Rms(kg/s)
11.62
Le(mH)
0
Re(Ohm)
7.1
Sd(sq.mm)
66253
Vd(l)
1.259
X-max(mm)
19
X-mech(mm)
0
General Parameters
Diameter (inch)
15
Max Power(W.)
2000
RMS Power(W.)
1000
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.28
Sensitivity(dB) 1-W
86.5
Sensitivity(dB) 2.8-V
87
Mounting Information
Speaker Displacement (l)
4.98
Total Diameter (mm)
400
Cutout Diameter (mm)
351
Mounting Depth (mm)
251
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, BP4
