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NDH18-4S-4 - 18" LIGHTWEIGHT SUBWOOFER SPEAKER |
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THE CIARE NDH18-4S-4 HAS A LIGHTWEIGHT 18" SUBWOOFER SPEAKER HAS A HIGH 11.5MM XMAX FOR A VERY STRONG BASS! |
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4 OHMS |
Item Price: $459.95 |
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SPEAKER
MODEL |
NDH18-4S-4 |
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SPECIFICATIONS |
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Nominal Basket Diameter |
18" |
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Impedance |
4 ohms |
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AES Power Rating |
1,000 Watts |
| Program Power | 2,000 Watts |
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Frequency Response |
30Hz - 200Hz |
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Sensitivity (1W/1m) |
100.5dB SPL |
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Voice Coil Diameter |
4" / 100mm |
| Gap Height | 14mm |
| Voice Coil Length | 1.18" / 30mm |
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MOUNTING INFORMATION |
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| Overall Diameter | 18.1" / 460mm |
| Bolt Circle Diameter | 17.32" / 440mm |
| Baffle Cutout Diameter | 16.38" / 416mm |
| Depth | 8.15" / 207mm |
| No. Of Mounting Holes | 8 |
| Mounting Hole Diameter | .28" / 7mm |
| Net Weight | 19.8 lbs./ 9 kg. |
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MATERIALS |
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| Basket | Die-Cast Aluminum |
| Cone | Treated Cellulose |
| Cone Shape | Straight |
| Suspension Material | Nomex Fabric |
| Surround Shape | Three Rolls |
| Voice Coil | Copper |
| Voice Coil Former | Fiberglass |
| Connection Type | Faston |
| Magnet | Neodymium |
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THIELE-SMALL PARAMETERS |
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Resonant Frequency (fs) |
31 Hz |
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Impedance
(Re) |
3.0 ohms |
| Coil Inductance (Le) | 1.7mH |
| Electrical Factor (Qes) | .25 |
| Mechanical Q (Qms) | 9.8 |
| Total Q (Qts) | .25 |
| Compliance Equiv. Vol. (Vas) | 240 Liters/8.48 cu. ft. |
| Voice Coil Overhang (Xmax) | 11.5mm |
| BL Factor | 22.2 T-M |
| Diaphragm Mass (Mms) | 216 Grams |
| Surface Area of Cone (Sd)m2 | 0.1164m2 |
| Reference Efficiency | 2.6% |
| Frequency Response | |
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| Impedance Curve | |
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| SPL FREQUENCY RESPONSE GRAPH | |
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SINGLE CABINET SPECS |
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DUAL CABINET SPECS |
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| Drawing | |
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US Speaker, LLC