12″ / 300 mm
Nominal diameter
32 Hz
Resonance
0.71
Q factor
85 dB
Sensitivity
± 16 mm
Linear excursion
1500 W
Program Power
Discontinued
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
85.0
dB
Frequency response
32 - 200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.4
Hz
Mechanical quality factor
QMS
3.88
Electrical quality factor
QES
0.86
Total quality factor
QTS
0.71
Large signal parameters
Maximum linear excursion
xmax
16.0
mm
Air volume displaced at xmax
VD
837
cm³
Power handling
P
500
W
Program power
Pmax
1500
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
7.3
Ω
Inductance (1kHz, in series, estimated)
LE
2.5
mH
Magnet
Force factor (in series)
Bl
18.6
N/A
Motor constant
Bl/√RE
6.87
N/√W
Diaphragm
Effective diameter
258
mm
Effective area
SD
523
cm²
Moving mass
MMS
190.8
g
Moving mass (without air load)
MMD
182.6
g
Suspensions
Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
46.4
L
Mechanical resistance
RMS
10.01
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Volume occupied by the driver (estimated)
2.3
L
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to MTX Audio T812-44
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12″Shallow Subwoofer
fS
34 Hz
SD
531 cm²
31 - 350 Hz
QTS
0.63
xmax
6.8 mm
SPL1W
86 dB
Bl/√RE
7.29
Pmax
600 W
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10″Woofer
fS
33 Hz
SD
337 cm²
35 - 600 Hz
QTS
0.66
xmax
8.5 mm
SPL1W
86 dB
Bl/√RE
4.34
Pmax
300 W