P.Audio 18BMA-1200S
8Ω
Low frequency
| Nominal diameter | 18″ / 457 mm |
| Resonance | 39 Hz |
| Q factor | 0.52 |
| Sensitivity | 93.5 dB |
| Linear excursion | ± 6.8 mm |
| Program power | 2400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 93.5dB
- Frequency response 38 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 39Hz
- Mechanical quality factor QMS 12.70
- Electrical quality factor QES 0.54
- Total quality factor QTS 0.52
Large signal parameters
- Maximum linear excursion (one way) xmax 6.8mm
- Air volume displaced at xmax VD 833cm³
- Power handling P 1200W
- Program power Pmax 2400W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.2Ω
- Inductance (1kHz) LE 1.31mH
- VC Diameter 115mm
- Winding height HVC 28.6mm
- Winding material Round Copper Wire
- Former material Glass Fiber
Magnet
- Flux density B 1.1T
- Force factor Bl 24N/A
- Motor constant Bl/√RE 10.5N/√W
- Air gap height HAG 15mm
- Material Ferrite
Diaphragm
- Effective diameter 395mm
- Effective area SD 1225cm²
- Moving mass (including air load) MMS 243g
- Moving mass MMD 213g
- Material Paper
Suspensions
- Stiffness KMS 14.7N/mm
- Compliance CMS 68µm/N
- Equivalent volume to the compliance VAS 142L
- Mechanical resistance RMS 4.69N·s/m
- Surround material Cloth
- Spider material Double Silicone
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 462mm
- Baffle cutout diameter 426mm
- Overall depth 218mm
- Flange thickness 15mm
- Mounting depth 203mm
- Volume occupied by the driver (estimated) 8.5L
- Net weight 16.3kg
- Frame material Aluminium
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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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