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NDH18-4S - 18" LIGHTWEIGHT SUBWOOFER SPEAKER |
THE CIARE NDH18-4S HAS A LIGHTWEIGHT 18" SUBWOOFER SPEAKER HAS A HIGH 11.5MM XMAX FOR A VERY STRONG BASS! |
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8 OHMS |
Item Price: $459.95 |
SPEAKER
MODEL |
NDH18-4S |
SPECIFICATIONS |
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Nominal Basket Diameter |
18" |
Impedance |
8 ohms |
AES Power Rating |
1,000 Watts |
Program Power | 2,000 Watts |
Frequency Response |
30Hz - 200Hz |
Sensitivity (1W/1m) |
96.5dB SPL |
Voice Coil Diameter |
4" / 100mm |
Voice Coil Length | 1.18" / 30mm |
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. |
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 |
THIELE-SMALL PARAMETERS |
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Resonant Frequency (fs) |
31 Hz |
Impedance
(Re) |
6.1 ohms |
Coil Inductance (Le) | 1.9mH |
Electrical Factor (Qes) | .33 |
Mechanical Q (Qms) | 9.8 |
Total Q (Qts) | .32 |
Compliance Equiv. Vol. (Vas) | 239 Liters/8.44 cu. ft. |
Voice Coil Overhang (Xmax) | 11.5mm |
BL Factor | 27.7 T-M |
Diaphragm Mass (Mms) | 212 Grams |
Surface Area of Cone (Sd)m2 | 0.1164m2 |
Reference Efficiency | 2.1% |
Frequency Response | |
Impedance Curve | |
SPL FREQUENCY RESPONSE GRAPH & CABINET SIZES | |
SINGLE CABINET SPECS | |
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DUAL CABINET SPECS | |
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Drawing | |
US Speaker, LLC