MTX Audio RTX128
Mid-range
12″ / 300 mm
Nominal diameter
61 Hz
Resonance
0.72
Q factor
93 dB
Sensitivity
± 0.8 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.2
dB
Frequency response
66 - 5200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
61.0
Hz
Mechanical quality factor
QMS
10.37
Electrical quality factor
QES
0.77
Total quality factor
QTS
0.72
Large signal parameters
Maximum linear excursion
xmax
0.8
mm
Air volume displaced at xmax
VD
42
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz, estimated)
LE
0.84
mH
Magnet
Force factor
Bl
11.86
N/A
Motor constant
Bl/√RE
5.06
N/√W
Diaphragm
Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
51.4
g
Moving mass (without air load)
MMD
43.1
g
Suspensions
Stiffness
KMS
7.52
N/mm
Compliance
CMS
133
µm/N
Equivalent volume to the compliance
VAS
52.9
L
Mechanical resistance
RMS
1.9
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Mounting depth
117
mm
Volume occupied by the driver (estimated)
2.3
L
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SpeakerbenchSimilar speaker drivers to MTX Audio RTX128
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10″Full-range
fS
60 Hz
SD
394 cm²
60 - 14000 Hz
QTS
0.65
xmax
4.0 mm
SPL1W
94 dB
Bl/√RE
4.21
Pmax
300 W
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12″Subwoofer
fS
55 Hz
SD
533 cm²
50 - 4000 Hz
QTS
0.67
xmax
4.9 mm
SPL1W
94 dB
Bl/√RE
4.97
Pmax
600 W
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12″Subwoofer
fS
55 Hz
SD
549 cm²
55 - 4000 Hz
QTS
0.57
xmax
5.4 mm
SPL1W
94 dB
Bl/√RE
5.14
Pmax
400 W