Precision Devices PD.156
Subwoofer
15″ / 380 mm
Nominal diameter
50 Hz
Resonance
0.47
Q factor
95 dB
Sensitivity
± 8.1 mm
Linear excursion
1300 W
Program Power
![Precision Devices PD.156 Subwoofer](/PrecisionDevices/PD.156/PrecisionDevices_PD.156_(Photo_1).jpg)
![Precision Devices PD.156 Subwoofer](/PrecisionDevices/PD.156/PrecisionDevices_PD.156_(Photo_2).jpg)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.1
- dB
- Frequency response
- 50 - 1500
- Hz
- Resonance frequency (free air)
- fS
- 50.3
- Hz
- Mechanical quality factor
- QMS
- 7.45
- Electrical quality factor
- QES
- 0.50
- Total quality factor
- QTS
- 0.47
- Maximum linear excursion
- xmax
- 8.1
- mm
- Air volume displaced at xmax
- VD
- 735
- cm³
- Power handling
- P
- 650
- W
- Program power
- Pmax
- 1300
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.7
- Ω
- Inductance (1kHz)
- LE
- 1.0
- mH
- VC Diameter
- 115
- mm
- Winding height
- HVC
- 21
- mm
- Winding material
- Copper
- Former material
- Glass Fibre
- Flux density
- B
- 1.5
- T
- Force factor
- Bl
- 20.98
- N/A
- Motor constant
- Bl/√RE
- 8.8
- N/√W
- Air gap height
- HAG
- 9
- mm
- Material
- Ceramic
- Effective diameter
- 340
- mm
- Effective area
- SD
- 908
- cm²
- Moving mass
- MMS
- 124.6
- g
- Moving mass (without air load)
- MMD
- 105.1
- g
- Material
- Paper
- Stiffness
- KMS
- 12.37
- N/mm
- Compliance
- CMS
- 81
- µm/N
- Equivalent volume to the compliance
- VAS
- 93.4
- L
- Mechanical resistance
- RMS
- 5.28
- N·s/m
- Surround material
- Fabric
- Nominal diameter
- 15
- ″
- 380
- mm
- Overall diameter
- 410
- mm
- Baffle cutout diameter
- 357
- mm
- Overall depth
- 153
- mm
- Flange thickness
- 10
- mm
- Mounting depth
- 143
- mm
- Volume occupied by the driver (estimated)
- 5.5
- L
- Net weight
- 13.25
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Precision Devices PD.156 SPL & Impedance](/PrecisionDevices/PD.156/PrecisionDevices_PD.156_(Frequency_response_+_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)