P.Audio IMF HP18B V3
8Ω
Low frequency
| Nominal diameter | 18″ / 457 mm |
| Resonance | 33 Hz |
| Q factor | 0.50 |
| Sensitivity | 93.4 dB |
| Linear excursion | ± 7.5 mm |
| Program Power | 1600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 93.4dB
- Frequency response 35 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 33Hz
- Mechanical quality factor QMS 3.10
- Electrical quality factor QES 0.59
- Total quality factor QTS 0.50
Large signal parameters
- Maximum linear excursion xmax 7.5mm
- Air volume displaced at xmax VD 919cm³
- Power handling P 800W
- Program power Pmax 1600W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.7Ω
- Inductance (1kHz) LE 0.77mH
- VC Diameter 99.3mm
- Winding height HVC 25mm
- Winding material SV-W
- Former material Aluminum
Magnet
- Flux density B 0.9T
- Force factor Bl 20.2N/A
- Motor constant Bl/√RE 8.44N/√W
- Air gap height HAG 10mm
- Material Ferrite
Diaphragm
- Effective diameter 390mm
- Effective area SD 1225cm²
- Moving mass MMS 205g
- Moving mass (without air load) MMD 175g
- Material Paper
Suspensions
- Stiffness KMS 8.7N/mm
- Compliance CMS 115µm/N
- Equivalent volume to the compliance VAS 240L
- Mechanical resistance RMS 13.7N·s/m
- Surround material Cloth
- Spider material Single
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 461mm
- Baffle cutout diameter 420mm
- Overall depth 198mm
- Flange thickness 13mm
- Mounting depth 185mm
- Volume occupied by the driver (estimated) 7.2L
- Net weight 13.8kg
- Frame material Heavy-duty stamp steel
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
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SpeakerSim
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