Model
Focal 33 K
Rating
DIAM
13"
FS(Hz)
38.4
VAS(l)
51.8
QTS
0.41
PWR(W)
800
SPL(dB)
90.1
IMP(Ohm)
4x1
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)
38.4
Vas(l)
51.8
Qts
0.41
Qms
7.2
Qes
0.44
Bl(Tm)
17
Mms(gr)
142
Cms(mm/N)
0.121
Rms(kg/s)
4.74
Le(mH)
0
Re(Ohm)
3.7
Sd(sq.mm)
54941
Vd(l)
0.494
X-max(mm)
9
X-mech(mm)
10
General Parameters
Diameter (inch)
13
Max Power(W.)
800
RMS Power(W.)
400
Number of Coils
1
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.64
Sensitivity(dB) 1-W
90.1
Sensitivity(dB) 2.8-V
93.4
Mounting Information
Speaker Displacement (l)
7
Total Diameter (mm)
335
Cutout Diameter (mm)
287
Mounting Depth (mm)
149
Magnet Diameter (mm)
184
Optimum Enclosures
Enclosures
Vented, BP6