OBERTON 15B450

Nominal Diameter
Impedance
Minimum Impedance
Power Capacity AES ¹
Power Capacity ²
Program Power ³
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

15"/388 inch/mm
8 Ohm
6.32 Ohm
450 W
350 W
900 W
(200-2000 Hz) 100 dB/W/m
45 - 2500 Hz
77 mm
Copper
Kapton™
18 mm
9 mm
Kevlar paper
Die cast aluminium
Ferrite
1.33 T

1. AES standard. Power is calculated on rated minimum impedance.
2. 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.
3. Program power is defined as 3db greater than AES Power Capacity.     

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)

45.08 Hz
9.60
0.294
0.286
146.85 Litres
81.56 grams
5.32 Ohms
829.6 cm2
± 6.75 mm
0.153 mm/N
20.43 T.m
1.08 mH

* 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

388 mm
352 mm
8 eliptic 7x8 mm
370/372 mm
162.5 mm
7.5 kg