Focal K2 POWER E 30 KX

Subwoofer

12″ / 305 mm
Nominal diameter
29 Hz
Resonance
0.46
Q factor
87 dB
Sensitivity
± 22.5 mm
Linear excursion
1600 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
86.7
dB
Frequency response
20 - 500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
29.0
Hz
Mechanical quality factor
QMS
6.10
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.46

Large signal parameters

Maximum linear excursion
xmax
22.5
mm
Air volume displaced at xmax
VD
1130
cm³
Power handling
P
800
W
Program power
Pmax
1600
W

Voice Coil

Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.4
Ω
Inductance (1kHz, in series, estimated)
LE
2.13
mH
VC Diameter
65
mm
Winding material
Copper Clad Aluminium
Former material
Glass fiber

Magnet

Force factor (in series)
Bl
21.3
N/A
Motor constant
Bl/√RE
8.42
N/√W
Diameter
170
mm

Diaphragm

Effective diameter
253
mm
Effective area
SD
502
cm²
Moving mass
MMS
183
g
Moving mass (without air load)
MMD
175
g
Material
Kevlar Sandwich

Suspensions

Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
50
L
Mechanical resistance
RMS
5.47
N·s/m
Surround material
Butyl

Dimensions

Nominal diameter
12
305
mm
Baffle cutout diameter
283
mm
Mounting depth
172
mm
Volume occupied by the driver
4.0
L
Net weight
11.2
kg
Focal E 30 KX Dimensions

Export this driver to a simulation software:

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