Haut-parleur RCF MB12N351
[MB12N351-8] Avis/Critiques 
The MB12N351 is designed to provide an excellent frequency response linearity with very low distortion.
A very strong neodymium magnetic structure guarantee dynamic and precision, a new and unique 3,5” voice coil design provides a very high power handling, especially recommended in comparison to a standard 3” voice coil. The unique Dual-forced air venting system guarantee a very efficient voice coil ventilation to minimize the power compression and provide higher power handling.
Applications :
The MB12N351 is ideal for use in applications where is required a very high efficiency and linearity with high power handling. It’s especially recommended for high powered multi-way system.
GENERAL SPECIFICATIONS
Nominal Diameter 300/12 mm/inch
Rated Impedance 8 Ohm
Program Power 1300 Watts
Power handling capacity 650 Watts
Sensitivity 99 dB
Frequency Range 45-3000 Hz
Effective Piston Diameter 260/10.2 mm/inch
Maximum Excursion Before Damage (peak to peak) 39/1.5 mm/inch
Minimum Impedance 7.0 Ohm
Voice Coil Diameter 87/3.4 mm/inch
Voice Coil Material Copper
Voice Coil Winding Depth 16.5/0.65 mm/inch
Number of layers 2
Kind of layer inside/outside
Top Plate Thickness 11/0.43 mm/inch
Cone Material No pressed Pulp
Cone Design Curved
Surround Material Polycotton
Surround Design M-roll
THIELE - SMALL PARAMETERS
Resonance frequency Fs 55 Hz
DC resistance Re 5.6 Ohm
Mechanical factor Qms 4.5
Electrical factor Qes 0.21
Total factor Qts 0.20
BL factor BL 22.5 T - m
Effective Moving Mass Mms 54 gr
Equivalent Cas air load Vas 61 liters
Effective piston area Sd 0.0053 m2
Max. linear excursion (mathematical) Xmax 5.5 mm
Voice - coil inductance @ 1kHz Le1k 1.65 mH
Half-space efficiency Eff 4.66 %
MOUNTING INFORMATION
Overall Diameter 320/12.6 mm/inch
Bolt Circle Diameter 293-304/11.5-12 mm
Bolt Hole Diameter 6.5/0.3 mm/inch
Front Mount Baffle Cut-out 282/11.1 mm/inch
Rear Mount Baffle Cut-out 284/11.2 mm/inch
Depth 138/5.4 mm/inch
Volume occupied by the driver 2.2/0.077 liters/ft3
SHIPPING INFORMATION
Net Weight 4.4/9.7 Kg/lbs
Shipping Weight 5.2/11.4 Kg/lbs
Frequency response curve of the loudspeaker taken in a hemispherical, free field environment and mounted in a
closed box with an internal volume of 600 litres (21,2 cu.ft) enclosing the rear of the driver. 
Impedance magnitude curve measured in free air.
Notes to Specifications
1 - Program Power is defined as 3 dB greater than AES power.
2 - AES standard.
3 - Sensitivity measurement is based on a 500-2,5 kHz pink noise signal with input power of 2.83V @ 8 Ohms.
4 - Thiele-Small parameters are measured after a hour warm up period running the loudspeaker at full power handling capacity.
5 - The maximum linear excursion is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg the gap depth.
6 - Calculated for front mounting
on 18 mm thick board.
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