LF
Woofer
18"
186FIND
Code: DR-18-004-8R-B2-C0001
Variant of DR-18-004
Key Features
- 4.5 inch high temperature voice coil
- High Sound pressure level
- Very high power handling
Quick Specs
Impedance
8 Ω
Program Power
3600 W
Sensitivity
96.00 dB
Fs
33.00 Hz
Magnet
Ferrite
Voice Coil
114.3 mm
Design Notes
Introducing 186FIND, the powerhouse woofer designed for superior audio performance. With a staggering 3,600 watts of peak power and a 4.5" voice coil that can withstand temperatures exceeding 350°C, this woofer is built to impress. Featuring a new paper pulp mixed with glass fibers, high excursion surround, and an extra large spider, it delivers unparalleled longevity and bass. The motor system's high grade ferrite magnet creates a strong symmetrical flux field, while the extended space below the voice coil allows for maximum excursion. Get ready to be blown away by the 186FIND woofer.
Specifications
General Specs
Nominal Diameter
18"
Rated Impedance
8 Ohm
Magnet
Ferrite
Basket Material
Aluminum
Power Handling
AES Power
1800 W
Continuous Power
3600 W
Peak Power
7200 W
Voice Coil
Diameter
114.3 mm
Winding Wire
Copper
Former
Glass Fiber
Winding Height
31.8 mm
T/S Parameters
Resonant Frequency (Fs)
33.00 Hz
Re
5.50 \u2126
Qes
0.360
Qms
12.10
Qts
0.350
Vas
174.20 liters
Sd
1256.00 cm\u00B2
Mms
288.00 grams
Rms
4.90
Cms
0.0810
Bl
30.20 T\u00B7m
Le
1.510 mH
Sensitivity
96.00 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper GF
Spider
Nomex
T-Plate
15 mm
Xmax (peak)
8.4 mm
Xmech
23.4 mm
Overall Diameter
468.00 mm
Bolt Circle Diameter
442.00 mm
Baffle Cutout Dia.
423.00 mm
Mounting Holes
8
Depth (flange to rear)
212.00 mm
Net Weight
19.30 kg
Ordering Codes
Product Code
DR-18-004-8R-B2-C0001
Downloads
Frequency Response & Impedance
2D Drawing
Technical Summary
The 186FINDX8-552A is a 18-inch high-output woofer driver designed for professional subwoofer systems requiring high sensitivity (96 dB 1W/1m) and controlled low-frequency behavior. The motor and suspension are optimized to maintain consistent performance at high drive levels, with controlled excursion and reduced thermal compression during long-term operation.
The driver is intended for use with high-power amplification (approx. 1800 W AES / 3600 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 25-100 Hz, making it suitable for integration with mid-bass or full-range systems.
This design is particularly effective in single or multi-driver bass reflex systems used in touring, installation, and high-SPL applications, where consistent performance, durability, and output capability are critical.
The driver is intended for use with high-power amplification (approx. 1800 W AES / 3600 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 25-100 Hz, making it suitable for integration with mid-bass or full-range systems.
This design is particularly effective in single or multi-driver bass reflex systems used in touring, installation, and high-SPL applications, where consistent performance, durability, and output capability are critical.
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): - 135 liters tuned to 37 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 34 Hz, HP filter 29 Hz - 160 liters tuned to 33 Hz: balanced response, general-purpose (recommended); -3 dB approx. 30 Hz, HP filter 23 Hz - 190 liters tuned to 29 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 25 Hz, HP filter 20 Hz
Frequently Asked Questions
- - 4.5 inch high temperature voice coil
- - High Sound pressure level
- - Very high power handling
Recommended enclosure alignments (bass reflex): - 135 liters tuned to 37 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 34 Hz, HP filter 29 Hz - 160 liters tuned to 33 Hz: balanced response, general-purpose (recommended); -3 dB approx. 30 Hz, HP filter 23 Hz - 190 liters tuned to 29 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 25 Hz, HP filter 20 Hz
High-excursion vented woofer / subwoofer, touring bass bin
AES Power: 1800 W,
Continuous: 3600 W,
Peak: 7200 W.
Sensitivity: 96.00 dB (1W/1m).
