15" Coaxial Neodymium Loudspeaker, 3" LF + 2.85" HF voice coil, 450 W + 80 W , 100 dB +106 dB

 

15NCX_pic

KEY FEATURES:

  • 100 db SPL 1W / 1m ( LF ) average sensitivity
  • 77 mm ( 3”) high temperature voice coil ( LF )
  • 900 W AES program power ( LF )
  • Triple aluminium demodulating rings
  • Silicon spider
  • Water protected cone
  • 1.4” exit HF neodymium compression driver
  • 72 mm (2.85”) HF high temperature voice coil
  • 80 degrees nominal dispersion
  • Very light weight

 

Application: Stage monitors and compact bass reflex boxes.

Description: The 15NCX is a 15" / 1.4" coaxial transducer designed for use in compact reflex enclosures and stage monitors with a nominal dispersion of 80 degrees.
The low profile, smooth curvilinear LF cone provides smooth response within its intended frequency range and water prove protective coating, allowing application in a wide range of environments. The state-of-the-art 77 mm (3 in) LF voice coil has Kapton former, which together with high temperature resistant resin ensure high reliability by high power.
A triple aluminium demodulating rings on the magnet structure reduce distortion and inductance and improve transient response.

The HF driver diaphragm assembly, using cotton composite dome this together with phasing plug improve linearity of frequency response in high end.
The HF magnet structure has cooper ring on the pole piece, which reduces the inductance figure of frequencies above 10 kHz, improving phase and impedance linearisation. This ensures extremely high SPL in the high end of the frequency response.

 

SPECIFICATIONS

Nominal diameter
Impedance
Minimum impedance LF
Frequency range
Dispersion angle

LF unit
Sensitivity (200-2000 Hz)
Power Capacity AES ¹
Program Power ²
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
V.C. Winding Depth
Magnet Gap Depth
Cone Material
Basket
Magnet
Flux Density

HF unit
Minimum impedance HF
DC resistance
Sensitivity (1-15 kHz)
Power capacity (1-20 kHz)
Program power
Voice coil diameter
Winding material
Diaphragm material
Flux density

388 mm (15 in)
LF 8 Ohm /HF 16 Ohm
6.20 Ohm
50 - 16000 Hz
80 deg


100 dB
450 W
900 W
77 mm (3 in)
Copper
Kapton
20 mm
9 mm.
Paper with glassfiber
Die Cast Aluminium
Neodymium
1.1 T


11.59 Ohms
10 Ohms
106 dB
80 W
160 W
72 mm (2.85 in)
Aluminium
cotton composite
1.85 T

THIELE-SMALL PARAMETERS

Fs
Qms
Qes
Qts
Vas
Mms
Re
Sd
Xmax*
Cms
BL 
Le at 1kHz 

43.74 Hz
10.02
0.375
0.36
138.45 L
91.88 g
5.10 Ohms
829 cm2
± 7.75 mm
0.144 mm/N
18.55 T.m
0.776 mH

 

1. AES standard. Power is calculated on rated minimum impedance. Measurement is in 125 L box enclosure tuned 56 Hz using a 40-400 Hz band limited pink noise test signal applied continuously for 2 hours.
2. Program power is defined as 3db greater than AES Power Capacity.
* Linear Mathematical Xmax is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg is the gap depth.

 

 

MOUNTING INFORMATION

Overall diameter
Depth
Baffle hole diameter
Bolt circle diameter
Мounting holes
Net weight

388 mm (15 in)
208.6 mm
355 mm
370/372 mm
8 eliptic 7x8 mm
5.65 kg

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