| Nominal diameter | 12″ / 305 mm |
| Resonance | 55 Hz |
| Q factor | 0.27 |
| Sensitivity | 98.9 dB |
| Linear excursion | ± 4.8 mm |
| Program Power | 900 W |
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 98.9dB
- Frequency response 55 - 5000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 55Hz
- Mechanical quality factor QMS 10.53
- Electrical quality factor QES 0.27
- Total quality factor QTS 0.27
Large signal parameters
- Maximum linear excursion xmax 4.8mm
- Air volume displaced at xmax VD 262cm³
- Power handling P 450W
- Program power Pmax 900W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.5Ω
- Inductance (1kHz) LE 0.4mH
- VC Diameter 76.2mm
- Winding height HVC 19mm
- Winding material Flat aluminium wire
- Former material Kapton
Magnet
- Flux density B 1.4T
- Force factor Bl 20.6N/A
- Motor constant Bl/√RE 8.08N/√W
- Air gap height HAG 9.5mm
- Material Neodymium
Diaphragm
- Effective diameter 263mm
- Effective area SD 552cm²
- Moving mass MMS 52.2g
- Moving mass (without air load) MMD 43.2g
- Material Waterproof Paper
Suspensions
- Stiffness KMS 6.37N/mm
- Compliance CMS 157µm/N
- Equivalent volume to the compliance VAS 67.8L
- Mechanical resistance RMS 1.71N·s/m
- Surround material Cloth
- Spider material Cotton
Dimensions
- Nominal diameter 12″
- 305mm
- Overall diameter 313mm
- Baffle cutout diameter 283mm
- Overall depth 150mm
- Flange thickness 19mm
- Mounting depth 131mm
- Volume occupied by the driver (estimated) 2.6L
- Frame material Aluminium
Similar speaker drivers to P.Audio 12NX-76MB
Oberton 12NCX8 Ω |
|---|
| 12″ Coaxial |
| fS | 58.2 Hz |
| SD | 515 cm² |
| 60 - 16000 Hz |
| QTS | 0.30 |
| xmax | 5.3 mm |
| SPL1W | 98 dB |
| Bl/√RE | 7.2 |
| Pmax | 700 W |
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