Model
FB Audio FB850D4
Rating
Attention! Parameters of that speaker were not checked: a source of data, manual were not found.
DIAM
12"
FS(Hz)
29.5
VAS(l)
42.4
QTS
0.52
PWR(W)
0
SPL(dB)
85.6
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)
29.5
Vas(l)
42.4
Qts
0.521
Qms
6.332
Qes
0.567
Bl(Tm)
27
Mms(gr)
255
Cms(mm/N)
114.427
Rms(kg/s)
7.45
Le(mH)
6.35
Re(Ohm)
8.8
Sd(sq.mm)
51071
Vd(l)
0.766
X-max(mm)
15
X-mech(mm)
0
General Parameters
Diameter (inch)
12
Max Power(W.)
0
RMS Power(W.)
850
Number of Coils
2
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.18
Sensitivity(dB) 1-W
85.6
Sensitivity(dB) 2.8-V
84.2
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
0
Cutout Diameter (mm)
0
Mounting Depth (mm)
0
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, BP4
