MTX Audio RTX658

Mid-range

6.5″ / 165 mm
Nominal diameter
149 Hz
Resonance
1.1
Q factor
93 dB
Sensitivity
± 0.295 mm
Linear excursion
200 W
Program Power
MTX Audio RTX658 Mid-rangeMTX Audio RTX658 Mid-rangeMTX Audio RTX658 Mid-range
Excursion
Velocity
SPL
Phase
Group delay
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
92.7
dB
Frequency response
136 - 6500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
149
Hz
Mechanical quality factor
QMS
8.29
Electrical quality factor
QES
1.27
Total quality factor
QTS
1.10

Large signal parameters

Maximum linear excursion
xmax
0.295
mm
Air volume displaced at xmax
VD
3.9
cm³
Power handling
P
100
W
Program power
Pmax
200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz, estimated)
LE
0.3
mH

Magnet

Force factor
Bl
6.14
N/A
Motor constant
Bl/√RE
2.51
N/√W

Diaphragm

Effective diameter
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
8.6
g
Moving mass (without air load)
MMD
7.4
g

Suspensions

Stiffness
KMS
7.52
N/mm
Compliance
CMS
133
µm/N
Equivalent volume to the compliance
VAS
3.32
L
Mechanical resistance
RMS
0.97
N·s/m

Dimensions

Nominal diameter
6.5
″
165
mm
Mounting depth
67
mm
Volume occupied by the driver (estimated)
0.5
L
Impedance
Step response
Tone Burst
DatasheetDatasheet

Export this driver to a simulation software:

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fS
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SD
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