LF
Woofer
18"
183FIND
Code: DR-18-003-8R-B2-C0001
Variant of DR-18-003
Key Features
- Optimized ferrite magnetic structure
- Lightweight, yet strong paper cone
- Hi spl
Quick Specs
Impedance
8 Ω
Program Power
1200 W
Sensitivity
97.07 dB
Fs
32.00 Hz
Magnet
Ferrite
Voice Coil
76 mm
Design Notes
183FIND is a cost-effective solution for subwoofers. Its lightweight yet strong cone allows the magnetic circuit to be size optimized while delivering a seizable amount of sound pressure. With its high efficiency (97 dB 1watt / 1 meter) and high power handling capabilities, this woofer will excel in all applications with tight budgets. The cone shape and material was developed to provide an optimum low-frequency response, making the woofer good choice for subwoofer systems.
Power Handling
At the core of the 183FIND is its voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures above 280°C. The winding with high-temperature specification copper wire ensures the long life of the voice coil, without the costly service cycles.
The cone is also extensively treated to withstand harsh environments and high humidity. Metal parts in the speaker assembly are coated for extreme weatherization protection.
Power Handling
At the core of the 183FIND is its voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures above 280°C. The winding with high-temperature specification copper wire ensures the long life of the voice coil, without the costly service cycles.
The cone is also extensively treated to withstand harsh environments and high humidity. Metal parts in the speaker assembly are coated for extreme weatherization protection.
Specifications
General Specs
Nominal Diameter
18"
Rated Impedance
8 Ohm
Magnet
Ferrite
Basket Material
Steel
Power Handling
AES Power
600 W
Continuous Power
1200 W
Peak Power
2400 W
Voice Coil
Diameter
76 mm
Winding Wire
Copper
Former
Glass Fiber
Winding Height
19.8 mm
T/S Parameters
Resonant Frequency (Fs)
32.00 Hz
Re
5.90 \u2126
Qes
0.430
Qms
13.20
Qts
0.420
Vas
329.50 liters
Sd
1225.40 cm\u00B2
Mms
165.00 grams
Rms
2.51
Cms
0.1500
Bl
21.14 T\u00B7m
Le
0.730 mH
Sensitivity
97.07 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper GF
Spider
Conex
T-Plate
8 mm
Xmax (peak)
5.9 mm
Xmech
13.9 mm
Overall Diameter
461.00 mm
Bolt Circle Diameter
442.00 mm
Baffle Cutout Dia.
422.00 mm
Mounting Holes
8
Depth (flange to rear)
184.00 mm
Net Weight
8.80 kg
Ordering Codes
Product Code
DR-18-003-8R-B2-C0001
Downloads
Frequency Response & Impedance
2D Drawing
Technical Summary
The 183FINDX8-297 is a 18-inch high-output mid-woofer driver designed for professional 2-way and multi-way systems requiring high sensitivity (97 dB 1W/1m) and controlled low-frequency behavior. The driver uses a balanced motor-suspension design that provides good cone control while maintaining usable output across its operating bandwidth.
The driver is intended for use with high-power amplification (approx. 600 W AES / 1200 W continuous) and DSP control. A high-pass filter in the range of 20-29 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 26-1500 Hz, covering bass through upper-mid frequencies for direct integration with a compression driver or tweeter in a two-way or multi-way system.
This design is particularly effective in single or multi-driver bass reflex systems used in professional two-way and multi-way PA systems, powered monitors, and compact bass-reflex enclosures, where extended bandwidth, controlled distortion across the full operating range, and versatile system integration are required.
The driver is intended for use with high-power amplification (approx. 600 W AES / 1200 W continuous) and DSP control. A high-pass filter in the range of 20-29 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 26-1500 Hz, covering bass through upper-mid frequencies for direct integration with a compression driver or tweeter in a two-way or multi-way system.
This design is particularly effective in single or multi-driver bass reflex systems used in professional two-way and multi-way PA systems, powered monitors, and compact bass-reflex enclosures, where extended bandwidth, controlled distortion across the full operating range, and versatile system integration are required.
Recommended enclosure volumes are simulated results. For best enclosure volumes and tuning, we recommend secondary simulation and careful evaluation. Several rounds of samples and fine-tuning may be required for optimal results.
Enclosure Recommendations
Recommended enclosure alignments (bass reflex): - 215 liters tuned to 37 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 34 Hz, HP filter 29 Hz - 250 liters tuned to 34 Hz: balanced response, general-purpose (recommended); -3 dB approx. 31 Hz, HP filter 24 Hz - 275 liters tuned to 30 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 26 Hz, HP filter 20 Hz
Frequently Asked Questions
- - Optimized ferrite magnetic structure
- - Lightweight, yet strong paper cone
- - Hi spl
Recommended enclosure alignments (bass reflex): - 215 liters tuned to 37 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 34 Hz, HP filter 29 Hz - 250 liters tuned to 34 Hz: balanced response, general-purpose (recommended); -3 dB approx. 31 Hz, HP filter 24 Hz - 275 liters tuned to 30 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 26 Hz, HP filter 20 Hz
High-excursion vented woofer / subwoofer, touring bass bin
AES Power: 600 W,
Continuous: 1200 W,
Peak: 2400 W.
Sensitivity: 97.07 dB (1W/1m).
