Precision Devices PD.121/2
8Ω
Mid-range
| Nominal diameter | 12″ / 300 mm |
| Resonance | 53.3 Hz |
| Q factor | 0.23 |
| Sensitivity | 97 dB |
| Linear excursion | ± 2.7 mm |
| Program Power | 600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 97dB
- Frequency response 100 - 6000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 53.3Hz
- Mechanical quality factor QMS 14.66
- Electrical quality factor QES 0.23
- Total quality factor QTS 0.23
Large signal parameters
- Maximum linear excursion xmax 2.7mm
- Air volume displaced at xmax VD 143cm³
- Power handling P 300W
- Program power Pmax 600W
- Peak power Ppeak 1200W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.9Ω
- Inductance (1kHz) LE 0.42mH
- VC Diameter 63mm
- Winding height HVC 12mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.5T
- Force factor Bl 21.5N/A
- Motor constant Bl/√RE 8.81N/√W
- Air gap height HAG 9mm
- Diameter 200mm
- Material Ceramic
Diaphragm
- Effective diameter 260mm
- Effective area SD 531cm²
- Moving mass MMS 65.4g
- Moving mass (without air load) MMD 56.3g
- Material Paper
Suspensions
- Stiffness KMS 5.94N/mm
- Compliance CMS 168µm/N
- Equivalent volume to the compliance VAS 66.6L
- Mechanical resistance RMS 1.49N·s/m
- Surround material Fabric
- Spider material Fabric
Dimensions
- Nominal diameter 12″
- 300mm
- Overall diameter 331mm
- Baffle cutout diameter 282mm
- Overall depth 123mm
- Flange thickness 11mm
- Mounting depth 112mm
- Volume occupied by the driver (estimated) 3.3L
- Net weight 9.2kg
- Frame material vented cast aluminium
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Export this driver to a simulation software:
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