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Oberton 12B450 - 12" 450W 8 Ohm
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.
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
Specifications
- Nominal Diameter - 12"/315 inch/mm
- Impedance - 8 Ohm
- Minimum Impedance - 6.22 Ohm
- Power Capacity AES ¹ - 450 W
- Program Power ² - 900 W
- Sensitivity - (200-2000 Hz) 99dB/W/m
- Frequency Range - 50 - 3000 Hz
- Voice Coil Diameter - 77 mm
- Voice Coil Material - Aluminium
- Voice Coil Former - Kapton™
- Voice Coil Winding Depth - 21 mm
- Magnet Gap Depth - 11 mm
- Cone Material - Paper
- Basket - Die cast aluminium
- Magnet - Ferrite
- Flux Density - 1.20 T
Thiele-Small Parameters
- Resonance Frequency - 46.29 Hz
- Mechanical Efficiency Factor (Qms) - 9.56
- Electrical Efficiency Factor (Qes) - 0.241
- Total Q (Qts) - 0.235
- Equivalent Air Volume (Vas ) - 71.75 Litres
- Diaphragm mass ind. airload (Mms) - 60.97 grams
- Voice Coil Resistance Re - 5.07 Ohms
- Effective Diagram Area (Sd) - 514.7 cm2
- Peak Linear Displacement of Diaphragm (Xmax)* - 7.75 mm
- Mechanical Compliance of Suspension (Cms) - 0.194 mm/N
- BL Product (BL) - 19.31 T.m
- V.C. Inductance at 1 kHz (Le) - 1.10 mH
Mounting Information
- Overall Diameter - 315 mm
- Baffle Hole Diameter - 280 mm
- Number of Mounting Holes - 8 eliptic 7x8 mm
- Bolt Circle Diameter - 296 / 298 mm
- Overall Depth - 153 mm
- Net Weight - 7.5 kg
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Our database has the following results for compatibility of this product with common speakers and components.
Electrovoice SB120 DL12SB | Woofer | Alternative
Electrovoice SB120 DL12SB | Woofer | Alternative
Our database of parts includes a wide range of products, and in many cases offers cost effective alternatives for repair. Alternatives are loosely grouped into three types:
Original - Usually an exact match to the original product, and just the 'standard' part from the factory which gets rebadged by manufacturer with their own brand and part number. Occasionally, there are subtle tweaks made from the standard part, but its virtually impossible for us to determine this. If we have listed the part as Original, it means we are confident the performance is the same.Aftermarket - Aftermarket parts often become available from factories in the far east once the original part is no longer manufactured. They are intended to be a close match, and provide a cost-effective alternative.
Equivalent - These are alternative options, which provide very similar performance, but are not the same as the original. In some cases the performance may actually be improved. We have used both our own experience, and feedback from customers in generating list of alternatives. Alternatives like this are useful when the original part is no longer made, there is no aftermarket option, so the only choice is to upgrade with the nearest current equivalent product.