SUPRAVOX 285 GMF

Mid Bass

12″ / 285 mm
Nominal diameter
47 Hz
Resonance
0.38
Q factor
101 dB
Sensitivity
± 4 mm
Linear excursion
140 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
101.1
dB
Frequency response
40 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
47.0
Hz
Mechanical quality factor
QMS
8.00
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.38

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
188
cm³
Power handling
P
70
W
Program power
Pmax
140
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz, estimated)
LE
0.55
mH

Magnet

Flux density
B
1.4
T
Force factor
Bl
10.7
N/A
Motor constant
Bl/√RE
4.2
N/√W
Diameter
120
mm

Diaphragm

Effective diameter
245
mm
Effective area
SD
471
cm²
Moving mass
MMS
20
g
Moving mass (without air load)
MMD
12.8
g

Suspensions

Stiffness
KMS
1.67
N/mm
Compliance
CMS
600
µm/N
Equivalent volume to the compliance
VAS
150
L
Mechanical resistance
RMS
0.74
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
12
285
mm
Overall diameter
290
mm
Baffle cutout diameter
280
mm
Overall depth
128
mm
Flange thickness
8
mm
Mounting depth
120
mm
Volume occupied by the driver (estimated)
1.9
L
Frame material
Aluminium
SUPRAVOX 285 GMF Impedance
SUPRAVOX 285 GMF SPL
SUPRAVOX 285 GMF SPL 30°
SUPRAVOX 285 GMF SPL 60°
SUPRAVOX 285 GMF Impulse response
SUPRAVOX 285 GMF Waterfall

Export this driver to a simulation software:

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