ATOHM LD180CR04
4Ω
Mid Bass
| Nominal diameter | 8″ / 180 mm |
| Resonance | 45.8 Hz |
| Q factor | 0.32 |
| Sensitivity | 89.6 dB |
| Linear excursion | ± 7.5 mm |
| Program Power | 150 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 89.6dB
- Frequency response 46 - 2500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 45.8Hz
- Mechanical quality factor QMS 3.94
- Electrical quality factor QES 0.35
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion xmax 7.5mm
- Maximum excursion before damage xlim 11mm
- Air volume displaced at xmax VD 121cm³
- Power handling P 150W
- Program power Pmax 150W
- Peak power Ppeak 300W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.6Ω
- Inductance (1kHz) LE 0.58mH
- VC Diameter 35mm
- Winding height HVC 18mm
Magnet
- Flux density B 1.12T
- Force factor Bl 7.2N/A
- Motor constant Bl/√RE 3.79N/√W
- Air gap height HAG 6mm
- Diameter 120mm
- Material Ferrite
Diaphragm
- Effective diameter 143mm
- Effective area SD 161cm²
- Moving mass MMS 18.2g
- Moving mass (without air load) MMD 16.7g
Suspensions
- Stiffness KMS 1.52N/mm
- Compliance CMS 660µm/N
- Equivalent volume to the compliance VAS 24.3L
- Mechanical resistance RMS 1.34N·s/m
Dimensions
- Nominal diameter 8″
- 180mm
- Overall diameter 182mm
- Baffle cutout diameter 154mm
- Overall depth 89mm
- Flange thickness 8mm
- Mounting depth 81mm
- Volume occupied by the driver (estimated) 0.62L
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Export this driver to a simulation software:
Closed Box Simulator·
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