LF
Woofer
18"
18FIND
Code: 18FINDX8-310B
Woofer/18inch/Ferrite/Paper/1000W/8ohm
Key Features
- EXTENDED LF FREQUENCY RESPONSE
- Optimized venting system
- Very wide B field
Quick Specs
Impedance
8 Ω
Program Power
2000 W
Sensitivity
96.33 dB
Fs
34.00 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 30mm.
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)
34.00 Hz
Re
5.10 \u2126
Qes
0.490
Qms
7.95
Qts
0.460
Vas
221.00 liters
Sd
1207.00 cm\u00B2
Mms
203.80 grams
Rms
5.50
Cms
0.1000
Bl
21.30 T\u00B7m
Le
1.400 mH
Sensitivity
96.33 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)
183.50 mm
Net Weight
13.50 kg
Ordering Codes
Product Code
18FINDX8-310B
Downloads
Frequency Response & Impedance
2D Drawing
Enclosure Recommendations
Recommended enclosure alignments (bass reflex): - 130 liters tuned to 39 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 36 Hz, HP filter 31 Hz - 150 liters tuned to 36 Hz: balanced response, general-purpose (recommended); -3 dB approx. 33 Hz, HP filter 26 Hz - 180 liters tuned to 32 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 27 Hz, HP filter 20 Hz
Frequently Asked Questions
- - EXTENDED LF FREQUENCY RESPONSE
- - Optimized venting system
- - Very wide B field
Recommended enclosure alignments (bass reflex): - 130 liters tuned to 39 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 36 Hz, HP filter 31 Hz - 150 liters tuned to 36 Hz: balanced response, general-purpose (recommended); -3 dB approx. 33 Hz, HP filter 26 Hz - 180 liters tuned to 32 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 27 Hz, HP filter 20 Hz
Outdoor / weather-resistant; high-excursion vented subwoofer, touring bass bin
AES Power: 1000 W,
Continuous: 2000 W,
Peak: 4000 W.
Sensitivity: 96.33 dB (1W/1m).
