Hertz Mille MP 300 D4.3 PRO
2x2Ω
2x4Ω
Subwoofer
12″ / 300 mm
Nominal diameter
24 Hz
Resonance
0.42
Q factor
85 dB
Sensitivity
± 17 mm
Linear excursion
1200 W
Program Power
![Hertz MP 300 D4.3 PRO Subwoofer](/Hertz/MP_300_D4.3_PRO/Hertz_MP_300_D4.3_PRO_(Photo_1).png)
![Hertz MP 300 D4.3 PRO Subwoofer](/Hertz/MP_300_D4.3_PRO/Hertz_MP_300_D4.3_PRO_(Photo_2).png)
![Hertz MP 300 D4.3 PRO Subwoofer](/Hertz/MP_300_D4.3_PRO/Hertz_MP_300_D4.3_PRO_(Photo_3).png)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 85.3
- dB
- Resonance frequency (free air)
- fS
- 24.0
- Hz
- Mechanical quality factor
- QMS
- 5.90
- Electrical quality factor
- QES
- 0.45
- Total quality factor
- QTS
- 0.42
- Maximum linear excursion
- xmax
- 17.0
- mm
- Maximum excursion before damage
- xlim
- 27.0
- mm
- Air volume displaced at xmax
- VD
- 891
- cm³
- Power handling
- P
- 600
- W
- Program power
- Pmax
- 1200
- W
- Nominal impedance
- Z
- 2 x 4
- Ω
- DC resistance (in series)
- RE
- 7.6
- Ω
- Inductance (1kHz, in series)
- LE
- 6.4
- mH
- VC Diameter
- 65
- mm
- Force factor (in series)
- Bl
- 24.0
- N/A
- Motor constant
- Bl/√RE
- 8.71
- N/√W
- Diameter
- 165
- mm
- Height
- 35
- mm
- Material
- Ferrite
- Effective diameter
- 260
- mm
- Effective area
- SD
- 524
- cm²
- Moving mass
- MMS
- 235
- g
- Moving mass (without air load)
- MMD
- 226.2
- g
- Material
- Water-repellent pressed paper
- Stiffness
- KMS
- 5.26
- N/mm
- Compliance
- CMS
- 190
- µm/N
- Equivalent volume to the compliance
- VAS
- 74
- L
- Mechanical resistance
- RMS
- 6.01
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 321
- mm
- Baffle cutout diameter
- 287
- mm
- Overall depth
- 187
- mm
- Flange thickness
- 23
- mm
- Mounting depth
- 164
- mm
- Volume occupied by the driver (estimated)
- 4.1
- L
- Net weight
- 8.63
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Hertz MP 300 D4.3 PRO Impedance](/Hertz/MP_300_D4.3_PRO/Hertz_MP_300_D4.3_PRO_(Impedance).png)
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)