18" | 182FIND
Ferrite Woofer
Key features:
- INSIDE / OUTSIDE WOUND COIL
- REINFORCED HALF PRESSED CONE
- SILICONE NOMEX SPIDER
Design notes:
The 182FIND is a high efficiency, (98 dB 1watt / 1 meter) 18-inch woofer with extended linear frequency response characteristics. The 182FIND uses durable half-pressed paper cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength at any given situation, high efficiency and a peak to peak maximum excursion of 25mm (1in). Power HandlingAt the core of the 182FIND is it’s voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures in excess of 250C, well beyond the thermal requirements of modern professional audio systems. Voice coil winding is wound inside and outside of the former in the 1-3 split.REDCATT has implemented a silicone spider design to ensure long term shape memory, consistency and diminish anomalies associated with spider deterioration.
Specifications:
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General specs |
Nominal Diameter: | 18 in. |
Rated Impedance: | 8 Ohm |
Power handling |
AES Power: | 1,000 Watts |
Program Power: | 2,000 Watts |
Voice Coil |
Diameter: | 4 in. |
Winding wire: | Copper |
Former: | Glass-fiber |
Winding height: | 25.5 mm |
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T/S Parameters |
Resonant frequency: | 31 Hz |
Re: | 5.5 ohm |
Qes: | 0.24 |
Qms: | 8.85 |
Qts: | 0.23 |
Vas: | 208.6 liters |
Sd: | 1,257 cm2 |
Mms: | 281 grams |
Bl: | 35.4 |
Le: | 4.92 mH |
Sensitivity: | 97.78 dB |
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Design details |
Surround Material: | Fabric |
Cone material: | Paper |
Spider: | Nomex |
Plate thickness: | 14 mm |
Peak to peak linear cone Displacement | 13.6 mm |
Overall diameter: | 468 mm |
Bolt circle diameter: | 442 mm |
Baffle cutout dia.: | 426 mm |
Number of mounting holes: | 8 |
Depth (flange to rear): | 189 mm |
Net weight: | 14 kg |
Ordering codes: |
4 ohm version: | n/a |
8 ohm version: | 182FINDX8-127 |
16 ohm version: | n/a |
Recone kits: |
4 ohm version: | n/a |
8 ohm version: | RC182FINDX8-127 |
16 ohm version: | n/a |
Frequency response & lmpedance
2D drawing