LF
Woofer
15"
155FIND
Code: DR-15-013-8R-B2-C0001
Woofer/15inch/Ferrite/Paper/400W/8ohm
Key Features
- Cost effective design, yet with high spl, extended mid frequency
- Good power handling
- Lightweight paper cone, conex spider
Quick Specs
Impedance
8 Ω
Program Power
800 W
Sensitivity
94.55 dB
Fs
40.00 Hz
Magnet
Ferrite
Voice Coil
63.5 mm
Design Notes
The 154FIND is a cost-effective solution for two-way and multi-way systems, together with subwoofers. It’s 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 extend mid-frequency response, making the woofer good choice for two-way and multi-way systems.
Power Handling
At the core of the 154FIND is its voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures above 280°C. The winding with high temperature handling 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 154FIND is its voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures above 280°C. The winding with high temperature handling 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
15"
Rated Impedance
8 Ohm
Magnet
Ferrite
Basket Material
Steel
Power Handling
AES Power
400 W
Continuous Power
800 W
Peak Power
1600 W
Voice Coil
Diameter
63.5 mm
Winding Wire
Copper
Former
Glass Fiber
Winding Height
15.5 mm
T/S Parameters
Resonant Frequency (Fs)
40.00 Hz
Re
6.20 \u2126
Qes
0.790
Qms
11.10
Qts
0.730
Vas
166.50 liters
Sd
881.00 cm\u00B2
Mms
102.60 grams
Rms
2.32
Cms
0.1500
Bl
14.38 T\u00B7m
Le
0.970 mH
Sensitivity
94.55 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper GF
Spider
Nomex
T-Plate
6 mm
Xmax (peak)
4.75 mm
Xmech
10.75 mm
Overall Diameter
386.00 mm
Bolt Circle Diameter
373.00 mm
Baffle Cutout Dia.
352.00 mm
Mounting Holes
8
Depth (flange to rear)
142.00 mm
Net Weight
4.50 kg
Ordering Codes
Product Code
DR-15-013-8R-B2-C0001
Downloads
Frequency Response & Impedance
2D Drawing
Technical Summary
The 155FINDX8-367D is a 15-inch woofer designed for professional PA, live sound, and installed sound systems with 94.6 dB sensitivity (1W/1m). The driver features a lightweight paper cone with fabric surround and Nomex spider, utilizing a ferrite magnet motor on a steel basket for cost-effective high-output performance. Weatherized construction with treated cone and coated metal parts supports operation in harsh environments.
The driver is intended for use with high-power amplification (approx. 400 W AES / 800 W continuous) and DSP control. A high-pass filter in the range of 32-45 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. The extended cone geometry supports midrange response up to 2-2.5 kHz, making the driver suitable for two-way system configurations.
This design is particularly effective in single or multi-driver bass reflex systems used in PA, live sound, rental, and installed sound applications, where cost-effective performance, weatherized durability, and high output capability are required.
The driver is intended for use with high-power amplification (approx. 400 W AES / 800 W continuous) and DSP control. A high-pass filter in the range of 32-45 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. The extended cone geometry supports midrange response up to 2-2.5 kHz, making the driver suitable for two-way system configurations.
This design is particularly effective in single or multi-driver bass reflex systems used in PA, live sound, rental, and installed sound applications, where cost-effective performance, weatherized durability, and high output capability 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): - 55 liters tuned to 46 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 42 Hz, HP filter 38 Hz - 65 liters tuned to 42 Hz: balanced response, general-purpose (recommended); -3 dB approx. 39 Hz, HP filter 32 Hz - 80 liters tuned to 38 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 32 Hz, HP filter 26 Hz
Frequently Asked Questions
- - Cost effective design, yet with high spl, extended mid frequency
- - Good power handling
- - Lightweight paper cone, conex spider
Recommended enclosure alignments (bass reflex): - 55 liters tuned to 46 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 42 Hz, HP filter 38 Hz - 65 liters tuned to 42 Hz: balanced response, general-purpose (recommended); -3 dB approx. 39 Hz, HP filter 32 Hz - 80 liters tuned to 38 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 32 Hz, HP filter 26 Hz
Outdoor / weather-resistant; vented subwoofer, pa bass bin, touring sub cabinet
AES Power: 400 W,
Continuous: 800 W,
Peak: 1600 W.
Sensitivity: 94.55 dB (1W/1m).
