RCF
PROFESSIONAL COMPONENTS
LF18G400 - VERY HIGH POWER 18" WOOFER
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LF18G400 - VERY HIGH POWER 18" WOOFER |
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PREFERRED FOR THX AND HIGH FIDELITY SUBWOOFER APPLICATIONS DUE TO ITS' EXTREMELY LOW DISTORTION! |
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No Longer Available |
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WOOFER
MODEL |
LF18G400 |
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SPECIFICATIONS |
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Nominal
Basket Diameter |
18" |
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Impedance |
8
ohms |
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AES
Power Rating |
1,000
Watts |
| Program Power |
2,000
Watts |
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Frequency
Response |
25Hz
- 2.0kHz |
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Sensitivity
(1W/1m) |
97.5dB |
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Voice
Coil Diameter |
4" / 100mm |
| Max. Excursion Before Damage | 2" / 50mm |
| Voice Coil Winding Depth | 1.0" / 25m |
| Cone Material | Carbon Fiber |
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MOUNTING INFORMATION |
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Overall Diameter |
18.3" / 465mm |
| Bolt Circle Diameter | 17.4-17.6" / 442-447mm |
| Baffle Cutout Diameter | 16.7" / 424mm |
| No. Of Mounting Holes | 8 |
| Mounting Hole Diameter | 0.3" / 6.5mm |
| Flange Thickness | .6" / 14mm |
| Overall Depth | 8.3" / 210mm |
| Volume Displaced By Driver | 7 Liters / .2ft^3 |
| Net Weight | 13.3 kg. / 29.3 lbs. |
| Shipping Weight | 14.3 kg. / 31.5 lbs. |
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THIELE-SMALL PARAMETERS |
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| Resonant Frequency (fs) | 28 Hz |
| Impedance (Re) | 5.1 ohms |
| Coil Inductance (Le) | 2.5mH |
| Electromagnetic Q (Qes) | .29 |
| Mechanical Q (Qms) | 4.6 |
| Total Q (Qts) | .27 |
| Diaphragm Mass (Mms) | 190 grams |
| Compliance Equivalent Vol. (Vas) | 360 Liters/12.71cu. ft. |
| Surface Area of Cone (Sd) | .122m2 |
| Voice Coil Overhang (Xmax) | 9.0mm |
| BL Factor | 24.2T-M |
| Reference Efficiency | 2.63% |
| FREQUENCY RESPONSE & IMPEDANCE CURVE | |
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Frequency response in a hemispherical, free field environment mounted in a closed box with an internal volume of 600 liters (21.2 cu.ft) enclosing the rear of the driver |
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| DIMENSIONAL DRAWING | |
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US Speaker, LLC
