The RCF MB12G301 is a high-efficiency 12-inch mid-bass speaker, designed for professional audio applications. With its 3-inch fiberglass inside/outside copper voice coil, it delivers excellent linearity, low distortion, and high sensitivity of 98 dB. The M-roll surround and exponential cone geometry ensure smooth performance, while the ceramic magnet structure provides durability and reliability. Built for 400W RMS power handling and 800W program power, this driver is ideal for systems demanding clear, punchy mid-bass response.
Product Specifications:
Nominal Diameter: 12 inch / 305 mm
Impedance: 8 ohms
Program Power: 800W
Power Handling Capacity: 400W
Sensitivity: 98 dB
Frequency Range: 50Hz – 3kHz
Effective Piston Diameter: 260 mm / 10.24 inch
Max Excursion Before Damage: 38 mm / 1.5 inch
Minimum Impedance: 7.2 ohm
Voice Coil Diameter: 3.0 inch / 76 mm
Voice Coil Winding Material: Aluminum
Voice Coil Length: 16 mm / 0.63 inch
Number of Layers: 2 (inside/outside)
Top Plate Thickness: 4 mm / 0.16 inch
Cone Design: Curved
Surround Material: Polycotton
Surround Design: M-roll
Magnet Type: Ceramic
Spider: Single
Thiele-Small Parameters:
Resonance Frequency (Fs): 53 Hz
DC Resistance (Re): 5.40 ohm
Mechanical Q Factor (Qms): 4.70
Electrical Q Factor (Qes): 0.28
Total Q Factor (Qts): 0.27
Bl Factor: 17.00 T x m
Effective Moving Mass (Mms): 48.0 g
Equivalent Air Volume (Vas): 72.0 liters
Effective Piston Area (Sd): 0.050 m2
Max Linear Excursion (Xmax): 6 mm
Voice Coil Inductance @ 1kHz (Le1k): 0.70 mH
Half-Space Efficiency: 3.69%
Mounting Information:
Overall Diameter: 320 mm / 12.6 inches
Bolt Circle Diameter: 294-304 mm / 11.57-11.97 inches
Bolt Hole Diameter: 7 mm / 0.28 inches
Front Mount Baffle Cutout: 282 mm / 11.1 inches
Rear Mount Baffle Cutout: 284 mm / 11.18 inches
Volume Occupied by Driver: 2.6 liters / 0.1 ft3
Size & Weight:
Height: 146 mm / 5.75 inches
Diameter: 320 mm / 12.6 inches
Weight: 7 kg / 15.43 lbs
Shipping Information:
Package Height: 210 mm / 8.27 inches
Package Width: 360 mm / 14.17 inches
Package Depth: 360 mm / 14.17 inches
Package Weight: 8 kg / 17.64 lbs
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