RCF MB12N301

The MB12N301 is a neodymium, high efficiency, 12” mid-bass. High sensitivity, excellent linearity and very high power handling capabilities. The magnetic structure is powered by a large neodymium magnet that provides an extremely high flux density in the gap. The new hyper-vented aluminium basket and magnetic assembly design provide an excellent heat dissipation and lower power compression. Special air-forced ventilations are provided for voice coil, magnet assembly and basket. M-roll surround and spider design offer great linearity and precise reproduction.

12" Leistung: 500W RMS, 1000W Programmleistung Schalldruck SPL 1W/1m: 98.5dB Freq. Range 50-3000 Hz

Features

* 3.0-inch, fibreglass inside/outside copper voice coil
* 1000 Watt continuous program power handling
* 98.5dB Sensitivity
* 50Hz –3.0KHz Frequency range
* Dual-forced air ventilation for minimum power compression
* M-roll surround and exponential cone geometry

General Specifications

* Nominal Diameter: 300 / 12 mm/inch
* Rated Impedance: 8 Ω
* Program Power: 1000 W AES
* Power handling capacity: 500 W AES
* Sensitivity: 98.5 dB
* Frequency Range: 50 Hz ÷ 3000 Hz
* Effective Piston Diameter: 260 / 10.2 mm/inch
* Max Excursion Before Damage (peak to peak): 34 / 1.34 mm/inch
* Minimum Impedance: 6.7 Ω
* Voice Coil Diameter: 76 / 3.0 mm/inch
* Voice Coil Material: Aluminium
* Voice Coil Winding Depth: 17 / 0.67 mm/inch
* Number of layers: 2
* Kind of layer: inside / outside
* Top Plate Thickness: 10 / 0.39 mm/inch
* Cone Material: No pressed pulp
* Cone Design: Curved
* Surround Material: Polycotton
* Surround Design: M - roll

Thiele/Small Parameters

* Resonance frequency: 54 Hz
* DC resistance: 5.8Ω
* Mechanical factor: 3.1
* Electrical factor: 0.26
* Total factor: 0.24
* BL Factor: 19 T · m
* Effective Moving Mass: 48 g
* Equivalent Cas air load: 71 liters
* Effettive piston area: 0.053 m²
* Max. linear excursion (mathematical): 6.0 mm
* Voice - coil inductance @ 1kHz: 1.8 mH
* Half-space efficiency: 4.00%

Mounting information

* Overall Diameter: 320 / 12.6 mm/inch
* Bolt Circle Diameter: 294.5-304 / 11.6-11.9 mm/inch
* Bolt Hole Diameter: 5.5 / 0.21 mm/inch
* Front Mount Baffle Cut-out: 288 / 11.25 mm/inch
* Rear Mount Baffle Cut-out: 288 / 11.25 mm/inch
* Depth: 133 / 5.24 mm/inch
* Volume occupied by the driver: 2.2 / 0.08 liters/ft³
* Net Weight: 3.4 / 7.5 kg/lbs

Shipping information

* Shipping weight: 4.2 / 9.2 kg/lb