LF
Mid-Woofer
15"
15NPM
Code: DR-15-025-8R-B2-C0001
Mid-Woofer/15inch/Neo/Paper/800W/8ohm
Key Features
- EXTENDED FREQUENCY RESPONSE
- 2 demodulation rings, lightweight carbon fiber loaded paper cone
- Hi BL, Double air-gap, powerful motor structure
Quick Specs
Impedance
8 Ω
Program Power
1600 W
Sensitivity
97.73 dB
Fs
48.00 Hz
Magnet
Neodymium
Voice Coil
101.6 mm
Design Notes
The 15NPM is a truly unique full range woofer. We have designed cutting edge product, using the best available materials and highly optimized design for the best performance in its class. It delivers very high efficiency, (98 dB 1watt / 1 meter), incredibly linear frequency response characteristics with extended HF frequency response, high power handling capability, while generating ultra low harmonic distortion artifacts. The 15NPM uses a lightweight carbon 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 linear excursion of 21mm.
Magnetic Circuit
The magnetic circuit sports two aluminum shorting rings, double air-gap front plate. The cooling system and the air flow has been designed using modern FEM techniques and further optimized to provide the highest levels of cooling efficiency. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability..
Magnetic Circuit
The magnetic circuit sports two aluminum shorting rings, double air-gap front plate. The cooling system and the air flow has been designed using modern FEM techniques and further optimized to provide the highest levels of cooling efficiency. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability..
Specifications
General Specs
Nominal Diameter
15"
Rated Impedance
8 Ohm
Magnet
Neodymium
Basket Material
Aluminum
Power Handling
AES Power
800 W
Continuous Power
1600 W
Peak Power
3200 W
Voice Coil
Diameter
101.6 mm
Former
Glass Fiber
Winding Height
23 mm
T/S Parameters
Resonant Frequency (Fs)
48.00 Hz
Re
4.70 \u2126
Qes
0.470
Qms
16.50
Qts
0.460
Vas
89.90 liters
Sd
855.30 cm\u00B2
Mms
123.00 grams
Rms
2.25
Cms
0.0900
Bl
19.30 T\u00B7m
Le
0.680 mH
Sensitivity
97.73 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper CF
Spider
Nomex
T-Plate
12.5 mm
Xmax (peak)
5.25 mm
Xmech
17.75 mm
Overall Diameter
392.00 mm
Bolt Circle Diameter
373.00 mm
Baffle Cutout Dia.
360.00 mm
Mounting Holes
8
Depth (flange to rear)
149.50 mm
Net Weight
6.65 kg
Ordering Codes
Product Code
DR-15-025-8R-B2-C0001
Downloads
Frequency Response & Impedance
2D Drawing
Technical Summary
The 15NPMX8-262 is a 15-inch high-output mid-woofer driver designed for professional 2-way and multi-way systems requiring high sensitivity (98 dB 1W/1m) and controlled low-frequency behavior. The driver features a compliant suspension design suited to moderate-volume enclosures with extended low-frequency response.
The driver is intended for use with high-power amplification (approx. 800 W AES / 1600 W continuous) and DSP control. A high-pass filter in the range of 34-47 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 39-1500 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. 800 W AES / 1600 W continuous) and DSP control. A high-pass filter in the range of 34-47 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 39-1500 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): - 50 liters tuned to 55 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 51 Hz, HP filter 47 Hz - 60 liters tuned to 50 Hz: balanced response, general-purpose (recommended); -3 dB approx. 46 Hz, HP filter 40 Hz - 75 liters tuned to 46 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 39 Hz, HP filter 34 Hz
Frequently Asked Questions
- - EXTENDED FREQUENCY RESPONSE
- - 2 demodulation rings, lightweight carbon fiber loaded paper cone
- - Hi BL, Double air-gap, powerful motor structure
Recommended enclosure alignments (bass reflex): - 50 liters tuned to 55 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 51 Hz, HP filter 47 Hz - 60 liters tuned to 50 Hz: balanced response, general-purpose (recommended); -3 dB approx. 46 Hz, HP filter 40 Hz - 75 liters tuned to 46 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 39 Hz, HP filter 34 Hz
Vented pa bass-mid cabinet, 2-way or 3-way touring top; weight-critical installs
AES Power: 800 W,
Continuous: 1600 W,
Peak: 3200 W.
Sensitivity: 97.73 dB (1W/1m).
