Precision Devices PDN.2151
8Ω
Subwoofer
| Nominal diameter | 21″ / 530 mm |
| Resonance | 31.4 Hz |
| Q factor | 0.28 |
| Sensitivity | 96.5 dB |
| Linear excursion | ± 10.5 mm |
| Program power | 2000 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 96.5dB
- Frequency response 30 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 31.4Hz
- Mechanical quality factor QMS 18.30
- Electrical quality factor QES 0.28
- Total quality factor QTS 0.28
Large signal parameters
- Maximum linear excursion (one way) 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 5.4Ω
- Inductance (1kHz) LE 1.9mH
- VC Diameter 152mm
- Winding height HVC 30mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.1T
- Force factor Bl 35.9N/A
- Motor constant Bl/√RE 15.5N/√W
- Air gap height HAG 15mm
- Material Neodymium
Diaphragm
- Effective diameter 465mm
- Effective area SD 1698cm²
- Moving mass (including air load) MMS 343g
- Moving mass MMD 294g
- Material Paper
Suspensions
- Stiffness KMS 13.4N/mm
- Compliance CMS 74.7µm/N
- Equivalent volume to the compliance VAS 303L
- Mechanical resistance RMS 3.7N·s/m
- Surround material Fabric
Dimensions
- Nominal diameter 21″
- 530mm
- Overall diameter 550mm
- Baffle cutout diameter 492mm
- Overall depth 218mm
- Flange thickness 14mm
- Mounting depth 204mm
- Volume occupied by the driver (estimated) 9.5L
- Net weight 16.3kg
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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