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-range](/MTX/RTX658/MTX_RTX658_(Photo_1).jpg)
![MTX Audio RTX658 Mid-range](/MTX/RTX658/MTX_RTX658_(Photo_2).jpg)
![MTX Audio RTX658 Mid-range](/MTX/RTX658/MTX_RTX658_(Photo_3).jpg)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 92.7
- dB
- Frequency response
- 136 - 6500
- Hz
- 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
- 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
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.0
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.3
- mH
- Force factor
- Bl
- 6.14
- N/A
- Motor constant
- Bl/√RE
- 2.51
- N/√W
- Effective diameter
- 130
- mm
- Effective area
- SD
- 133
- cm²
- Moving mass
- MMS
- 8.6
- g
- Moving mass (without air load)
- MMD
- 7.4
- g
- 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
- Nominal diameter
- 6.5
- ″
- 165
- mm
- Mounting depth
- 67
- mm
- Volume occupied by the driver (estimated)
- 0.5
- L
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
Export this driver to a simulation software:
![WinISD](/images/export/WinISD.png)
![Basta!](/images/export/Basta.png)
![Hornresp](/images/export/Hornresp.png)
![QSpeakers](/images/export/QSpeakers.png)
![SpeakerSim](/images/export/SpeakerSim.png)
![MfbLabs](/images/export/MfbLabs.png)
![Speakerbench](/images/export/Speakerbench.png)