RCF - Midrange/MR10N301

The MR10N301 is a high efficiency, high power midrange specially designed to provide superior sound pressure level in a very compact size. The total weight is reduced to less than half of a comparable ceramic midrange thanks to an incredibly powerful neodymium magnet assembly. The unique sealed basket design doesn’t require a back sealing chamber, simplifying the cabinet design and improving heat dissipation. Every detail of this speaker has been optimized to offer the best response and perfect control to the midrange frequencies.

Applications
The MR10N301 is especially designed for horn-loading and line array configurations. The ideal range of application are mid and mid-low frequencies. The combination of the 3” voice coil, the neodymium motor and the heat sink basket design makes this driver the ideal solution for the most demanding applications.

3-inch Inside/outside voice coil, high BL neodymium design
Very high sensitivity (109 dB/1w in horn loaded application), very high BL factor
700 Watt Continuous program power handling
Frequency range: 150 Hz – 2 kHz (mid and mid-low frequencies)
Unique aluminum sealed basket featuring vented fin heat dissipation design
Calibrated back volume for a perfect time domain transient reproduction

GENERAL SPECIFICATIONS
Nominal Diameter 260/10 mm/inch
Rated Impedance 8 Ohm
Program Power 600 Watts
Power handling capacity 300 Watts
Sensitivity 102 dB
Frequency Range 150-2000 Hz
Effective Piston Diameter 210/8.3 mm/inch
Maximum Excursion Before Damage (peak to peak) 20/0.8 mm/inch
Minimum Impedance 8.5 Ohm
Voice Coil Diameter 76/3 mm/inch
Voice Coil Material Aluminium
Voice Coil Winding Depth 11/0,4 mm/inch
Number of layers 2
Kind of layer Inside/Outside
Top Plate Thickness 10/0.4 mm/inch
Cone Material No pressed pulp
Cone Design Curved
Surround Material Polycotton
Surround Design M- roll

THIELE – SMALL PARAMETERS
Resonance frequency Fs 250 Hz
DC resistance Re 6.2 Ohm
Mechanical factor Qms 6.48
Electrical factor Qes 0.72
Total factor Qts 0.65
BL factor BL 20.7 T – m
Effective Moving Mass Mms 31.8 gr
Equivalent Cas air load Vas 2.2 liters
Effective piston area Sd 0,035 m2
Max. linear excursion (mathematical) Xmax 1.4 mm
Voice – coil inductance @ 1kHz Le1k 1.17 mH
Half-space efficiency Eff 9.26 %

MOUNTING INFORMATION
Overall Diameter 272/10.7 mm/inch
Bolt Circle Diameter 244.5/9.6 mm
Bolt Hole Diameter 7/0.3 mm/inch
Front Mount Baffle Cut-out 235/9.3 mm/inch
Rear Mount Baffle Cut-out 232/9.1 mm/inch
Depth 124/4.9 mm/inch
Volume occupied by the driver 5.0 liters/ft3

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