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Speaker - Celestion, 18", FTR18-4080F, 600W, 8Ω
- 18" ferrite woofer provides 600Wrms power handling (AES Standard) and 97dB sensitivity
- 4" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
- Flexirol TM surround for greater excursion control
- Low frequency response, down to 30Hz
- Smart chassis design minimises acoustic distortion
- Specially treated weather-resistant cone
| Chassis Type | Cast Aluminium | |
| Coil Material | Round copper | |
| Cone Material | Glass-loaded paper with weather-resistant impregnation | |
| Continuous Power Rating | 1,200 W | |
| Cut-out Diameter | 416 mm | |
| D | 380 mm | |
| Diameter | 18 in. | |
| Diaphragm/Coil Mass (Mmd) | 136.61 g | |
| Electrical Q Factor (Qes) | 0.335 | |
| Equivalent Acoustic Volume (VAS) | 281.31 liters | |
| Force Factor (BxL) | 22.48 Wb/m | |
| Former Material | Glass fibre | |
| Frequency Range | 30 Hz - 3,000 Hz | |
| Gap Depth | 10 mm | |
| Magnet Type | Ferrite | |
| Magnet Weight | 110 oz. | |
| Maximum Linear Displacement (XMAX) | 5.6 mm | |
| Mechanical Compliance (CMS) | 0.15 mm/N | |
| Mechanical Moving Mass (MMS) | 155.6 g | |
| Mechanical Q Factor (QMS) | 4.334 | |
| Mechanical Resistance of Driver (Rms) | 7.34 kg/s | |
| Mounting Hole Bolt Circle Diameter | 429 mm - 440 mm | |
| Mounting Hole Length | 10 mm | |
| Mounting Hole Width | 7 mm | |
| Mounting Slots | 8 | |
| Nominal Diameter | 18 in. | |
| Nominal Impedance | 8 Ω | |
| Overall Depth | 205 mm | |
| Overall Diameter | 452 mm | |
| Power Rating | 800W | |
| Resonance Frequency (ƒS) | 3257 Hz | |
| Sensitivity | 497 dB | |
| Surround Material | Cloth-sealed | |
| Suspension | Single | |
| Total Q Factor (QTS) | 0.311 | |
| Voice Coil DC Resistance (Re) | 5.32Ω | |
| Voice Coil Diameter | 4 in. | |
| Voice Coil Inductance @ 1 kHZ (LE) | 1.25 mH | |
| Voice Coil Winding Width | 22 mm |
| Packaging Dimensions | 19.5 in. × 19.5 in. × 9.5 in. | |
| Weight (Packaging) | 27.25 lbs. |
 Specification Sheet | All Models |
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