LF
Woofer
18"
18FIND
Code: 18FINDX8-036
Woofer/18inch/Ferrite/Paper/1000W/8ohm
Key Features
- EXTENDED FREQUENCY RESPONSE
- Optimized venting system
- High power handling
Quick Specs
Impedance
8 Ω
Program Power
2000 W
Sensitivity
97.24 dB
Fs
36.00 Hz
Magnet
Ferrite
Voice Coil
101.6 mm
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 Handling
At 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.
Power Handling
At 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"
Rated Impedance
8 Ohm
Magnet
Ferrite
Basket Material
Aluminum
Power Handling
AES Power
1000 W
Continuous Power
2000 W
Peak Power
4000 W
Voice Coil
Diameter
101.6 mm
Winding Wire
Copper
Former
Glass Fiber
Winding Height
23.7 mm
T/S Parameters
Resonant Frequency (Fs)
36.00 Hz
Re
5.20 \u2126
Qes
0.440
Qms
8.40
Qts
0.420
Vas
203.40 liters
Sd
1257.00 cm\u00B2
Mms
211.80 grams
Rms
5.70
Cms
0.0900
Bl
23.60 T\u00B7m
Le
1.740 mH
Sensitivity
97.24 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper CF
Spider
Nomex
T-Plate
12 mm
Xmax (peak)
5.85 mm
Xmech
17.85 mm
Overall Diameter
468.00 mm
Bolt Circle Diameter
442.00 mm
Baffle Cutout Dia.
426.00 mm
Mounting Holes
8
Depth (flange to rear)
184.00 mm
Net Weight
13.70 kg
Ordering Codes
Product Code
18FINDX8-036
Downloads
Frequency Response & Impedance
2D Drawing
Enclosure Recommendations
Recommended enclosure alignments (bass reflex): - 130 liters tuned to 41 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 38 Hz, HP filter 33 Hz - 155 liters tuned to 38 Hz: balanced response, general-purpose (recommended); -3 dB approx. 35 Hz, HP filter 28 Hz - 180 liters tuned to 34 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 29 Hz, HP filter 22 Hz
Frequently Asked Questions
- - EXTENDED FREQUENCY RESPONSE
- - Optimized venting system
- - High power handling
Recommended enclosure alignments (bass reflex): - 130 liters tuned to 41 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 38 Hz, HP filter 33 Hz - 155 liters tuned to 38 Hz: balanced response, general-purpose (recommended); -3 dB approx. 35 Hz, HP filter 28 Hz - 180 liters tuned to 34 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 29 Hz, HP filter 22 Hz
Outdoor / weather-resistant; high-excursion vented subwoofer, touring bass bin
AES Power: 1000 W,
Continuous: 2000 W,
Peak: 4000 W.
Sensitivity: 97.24 dB (1W/1m).
