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DESCRIPTION
The 1
Key features:
EXTENDED FREQUENCY RESPONSE
Optimized venting system
High power handling
Design notes:
The 18FIND is a high efficiency, (97 dB 1watt / 1 meter) 18-inch woofer with incredibly linear frequency response characteristics, high power handling capability while generating low harmonic distortion artifacts. The 18FIND uses a lightweight glass fiber loaded cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency and a peak to peak maximum excursion of 21mm. Power HandlingAt the core of the 18FIND 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. REDCATT has implemented a silicone spider design to ensure long term shape memory, consistency and diminish anomalies associated with spider deterioration.
Specifications:
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:
kapton
Winding height:
23.7 mm
T/S Parameters
Resonant frequency:
36 Hz
Re:
5.2 ohm
Qes:
0.44
Qms:
8.4
Qts:
0.42
Vas:
203.4 liters
Sd:
1,257 cm2
Mms:
211.8 grams
Bl:
23.6
Le:
1.74 mH
Sensitivity:
97.24 dB
Design details
Surround Material:
Fabric
Cone material:
Paper
Spider:
Nomex
Plate thickness:
12 mm
Peak to peak linear cone Displacement
n/a mm
Overall diameter:
468 mm
Bolt circle diameter:
442 mm
Baffle cutout dia.:
426 mm
Number of mounting holes:
8
Depth (flange to rear):
184 mm
Net weight:
13.7 kg
8FIND is a high efficiency, (98 dB 1watt / 1 meter) 18-inch woofer with incredibly linear frequency response characteristics, and high power handling capability while generating low harmonic distortion artifacts. The 18FIND uses a lightweight glass fiber-loaded cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency, and a peak-to-peak maximum excursion of 50mm (2in).