12” Neodymium Woofer, 3” voice coil, 500 W, 100 dB

 

12NB450 copy

KEY FEATURES:

  • 100 db 1W / 1m average sensitivity
  • 77 mm high temperature 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
  • Silicone spider
  • Water protected cone (front)

Application : High power woofer

12NB450 loudspeaker combining good linearity and efficiency with high power handling capabilities, with use of 77 mm aluminium voice coil and 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. 12NB450 is suitable for application as LF driver in compact 2- way boxes, and small stage monitors.

 

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

12"/315 inch/mm
8 Ohm
6.54 Ohm
500 W
1000 W
(200 -2000 Hz) 100 dB/W/m
50 - 2000 Hz
77 mm
Aluminium
Kapton™
21 mm
11 mm
Paper with glassfiber
Die Cast Aluminium
Neodymium
1.30 T

THIELE-SMALL PARAMETERS

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

46.46 Hz
10.53
0.208
0.204
72.57 litres
59.82 grams
5.00 Ohms
514.7 cm2
±7.75 mm
0.196 mm/N
20.34 T.m
0.83 mH

1. AES standard. Power is calculated on rated minimum impedance. Measurement is in 65 L box enclosure tuned 63 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

315 mm
280 mm
8 eliptic 7x8 mm
296 / 298 mm
181.3 mm
5.25kg

 

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