Ciare NDH18-4S 8ohm Specifications
- Nominal Diameter: 450 mm (18 )
- Overall Diameter: 388 mm
- Bolt Circle Diameter: 370 mm
- Baffle Cutout Diameter: 354 mm
- Overall Depth: 208 mm
- Flange/Gasket Thickness: 13 mm
- Impedance: 8 ohm
- Program Power: 2000 W
- Power: 1000 W
- Sensitivity: 96.5 dB
- Frequency Range: 30-200 Hz
- Voice Coil Diameter: 100 mm (4 )
- Voice Coil Material: –
- Voice Coil Depth: 30 mm
- Magnetic Gap Depth: 14 mm
- Cone Shape: –
- Cone Material: Treated Cellulose
- Surround Type: –
- Surround Material: Nomex
- Chassis Material: Diecast Aluminum
- Magnet Material: Neodymium
- Recommended Enclosure: Vented
- Terminals: Faston
- Mounting Holes: 8
Thiele and small parameters
- Efficiency Bandwidth Product (EBP) – 94
- Resonance (Fs) – 31 Hz
- DC Resistance (Re) – 6.1 Ohm
- Mechanical Q (Qms) – 9.8
- Electrical Q (Qes) – 0.33
- Total Q (Qts) – 0.32
- Force Factor (BL) – 27.7 Tm
- Moving Mass – Diaphragm (Mmd) – 212 g
- Cas (Cas) – 239
- Dd (Dd) – 385
- Diaphragm Area (Sd) – 1164 cm2
- Maximum Linear Excursion (Xmax) – 11.5 mm
- Voice Coil Inductance (Le) – 1.9 mH
- Reference Efficiency (Eta Zero) – 2.1 %
Shipping Information
Weight 8 kg
Overall Diameter 460 mm
Overall Depth 207 mm
Baffle Cut Diameter 416 mm
Mounting holes number 8
Mounting holes diameter 7 mm
Mounting bolt diameter 440 mm










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