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Oberton 12B400 - 12" 450W 8 Ohm part for Electrovoice SX300
The 12B400 loudspeaker is combining 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. 12B400 is suitable for application as LF driver in small stage monitor and 2- way PA boxes with 1" HF driver.
- 98db 1W / 1m average sensitivity
- 77mm high temperature aluminium voice coil
- 900W AES program power
- Powerful,ferrite180 mm magnet structure
- Silicone spider
Specifications:
- Nominal Diameter 12"/310 inch/mm
- Impedance 8 Ohm
- Minimum Impedance 6.35 Ohm
- Power Capacity AES ¹ 450 W
- Program Power ² 900 W
- Sensitivity (200-2000 Hz) 98 dB/W/m
- Frequency Range 50 - 2500 Hz
- Voice Coil Diameter 77 mm
- Voice Coil Material Aluminium
- Voice Coil Former Kapton™
- Voice Coil Winding Depth 15 mm
- Magnet Gap Depth 9 mm
- Cone Material Paper
- Basket Die cast aluminium
- Magnet Ferrite
- Flux Density 1.33 T
Thiele-Small Parameters:
- Resonance Frequency 50.47 Hz
- Mechanical Efficiency Factor (Qms) 9.69
- Electrical Efficiency Factor (Qes) 0.256
- Total Q (Qts) 0.249
- Equivalent Air Volume (Vas ) 74.74 Litres
- Diaphragm mass ind. airload (Mms) 49.22 grams
- Voice Coil Resistance Re 5.55 Ohms
- Effective Diagram Area (Sd) 514.7 cm2
- Peak Linear Displacement of Diaphragm (Xmax)*5.25 mm
- Mechanical Compliance of Suspension (Cms) 0.202 mm/N
- BL Product (BL) 18.40 T.m
- V.C. Inductance at 1 kHz (Le) 0.81 mH
Mounting Information:
- Overall Diameter 310 mm
- Baffle Hole Diameter 280 mm
- Number of Mounting Holes 8 with dia. 7 mm
- Bolt Circle Diameter 294 mm
- Overall Depth 144.5 mm
- Net Weight 7.25 kg
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