Precision Devices PD.2150
8Ω
Subwoofer
| Nominal diameter | 21″ / 530 mm |
| Resonance | 29.5 Hz |
| Q factor | 0.27 |
| Sensitivity | 95.8 dB |
| Linear excursion | ± 10.5 mm |
| Program Power | 2000 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.8dB
- Frequency response 30 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 29.5Hz
- Mechanical quality factor QMS 14.21
- Electrical quality factor QES 0.28
- Total quality factor QTS 0.27
Large signal parameters
- Maximum linear excursion xmax 10.5mm
- Air volume displaced at xmax VD 1783cm³
- Power handling P 1000W
- Program power Pmax 2000W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.5Ω
- Inductance (1kHz) LE 2.1mH
- VC Diameter 152mm
- Winding height HVC 30mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.1T
- Force factor Bl 37.4N/A
- Motor constant Bl/√RE 15.9N/√W
- Air gap height HAG 15mm
- Material Ceramic
Diaphragm
- Effective diameter 465mm
- Effective area SD 1698cm²
- Moving mass MMS 383g
- Moving mass (without air load) MMD 333g
- Material Paper
Suspensions
- Stiffness KMS 13.1N/mm
- Compliance CMS 76.4µm/N
- Equivalent volume to the compliance VAS 309L
- Mechanical resistance RMS 4.99N·s/m
- Surround material Fabric
Dimensions
- Nominal diameter 21″
- 530mm
- Overall diameter 555mm
- Baffle cutout diameter 495mm
- Overall depth 230mm
- Flange thickness 15mm
- Mounting depth 215mm
- Volume occupied by the driver (estimated) 15L
- Net weight 31.75kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
QSpeakers
SpeakerSim
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