15” Neodymium Woofer, 3” voice coil, 500 W, 99 dB

 

15NB500 loudspeaker

KEY FEATURES:

  • 99 db 1W / 1m average sensitivity
  • 77 mm high temperature sandwich voice coil
  • 1000 W AES program power
  • Vented neodymium magnet assembly with massive heatsink
  • Triple aluminium demodulating rings for lower distortion and improved heat dissipation
  • Double silicone spider for improved excursion control and linearity
  • Water protected cone (front)

 

Application : High power woofer

15NB500 loudspeaker combining good linearity and efficiency with high power handling capabilities, with use of 77 mm voice coil and double silicone spider. It features aluminium die cast frame with integrated triple demodulating rings and vented neodymium magnet structure. The massive heatsink improve the cooling of the magnet structure, which reduce power compression. 15NB500 is suitable for application in a wide variety of enclosure types and particularly as LF driver in 2- or 3- way boxes.

 

SPECIFICATIONS

Nominal Diameter
Impedance
Minimum Impedance
Power Capacity AES ¹
Program Power ²
Sensitivity
Frequency Range
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
V. C. Winding Depth
Magnet Gap Depth
Cone Material
Basket
Magnet
Flux Density

15"/388 inch/mm
8 Ohm
6.65 Ohm
500 W
1000 W
(60-2000 Hz) 99 dB/W/m
42 - 2500 Hz
77 mm
Copper
Glass fiber
20 mm
11 mm
Paper with Glass fiber
Die Cast Aluminium
Neodymium
1.20 T

THIELE-SMALL PARAMETERS

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

42.77 Hz
11.97
0.260
0.255
121.46 litres
109.57 grams
5.23 Ohms
829.6 cm2
±7.25 mm
0.126 mm/N
24.31 T.m
1.14 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
Baffle Hole Diameter
Mounting Holes
Bolt Circle Diameter
Overall Depth
Net Weight

388 mm
355 mm
8 eliptic 7x8 mm
370/372 mm
200 mm
5.4 kg

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