12” Woofer, 3” voice coil, 450 W, 99 dB

 

12B450_NEW

KEY FEATURES:

  • 99 db 1W / 1m average sensitivity
  • 77 mm high temperature aluminium voice coil
  • 900 W AES program power
  • Powerful, vented 180 mm magnet structure
  • Double aluminium demodulating rings for lower distortion and improved heat dissipation
  • Silicone spider

 

Application : Woofer

The 12B450 loudspeaker is combining very good linearity and efficiency with high power handling capabilities, with use of 77 mm aluminium voice coil. It features vented aluminium die cast frame, 180 mm magnet structure and curvilinear paper cone. 12B450 is suitable for application as LF driver in small stage monitors and 2- way PA boxes with 1`` HF driver.

 

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
6.22 Ohm
450 W
900 W
(200-2000 Hz) 99dB/W/m
50 - 3000 Hz
77 mm
Aluminium
Kapton™
21 mm
11 mm
Paper
Die cast aluminium
Ferrite
1.20 T

THIELE-SMALL PARAMETERS

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

46.29 Hz
9.56
0.241
0.235
71.75 Litres
60.97 grams
5.07 Ohms
514.7 cm2
± 7.75 mm
0.194 mm/N
19.31 T.m
1.10 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
153 mm
7.5 kg

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