Oberton 12B450

SPECIFICATIONS

THIELE-SMALL PARAMETERS

Nominal Diameter
Impedance
Minimum Impedance
Power Capacity AES ¹
Program Power ²
Sensitivity
Frequency Range
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
Voice Coil 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

Resonance Frequency
Mechanical Efficiency Factor (Qms)
Electrical Efficiency Factor (Qes)
Total Q (Qts)
Equivalent Air Volume (Vas )
Diaphragm mass ind. airload (Mms)
Voice Coil Resistance Re
Effective Diagram Area (Sd)
Peak Linear Displacement of Diaphragm (Xmax)*
Mechanical Compliance of Suspension (Cms)
BL Product (BL)
V.C. Inductance at 1 kHz (Le)

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

MOUNTING INFORMATION 

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.

Overall Diameter
Baffle Hole Diameter 
Number of 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