RCF MB 15 X 301

RCF MB 15 X 301

The MB15X301 is designed to provide an excellent frequency response linearity with very low distortion. A strong magnetic structure guarantee dynamic and precision. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling. Triple roll surround and spider design offer great linearity and precise reproduction.
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Product details

More Information
  • 3-inch, fibreglass inside/outside aluminium voice coil
  • 1000W continuous program power handling
  • 98.5 dB Sensitivity
  • 40 Hz 3.0 kHz Frequency range
  • Dual Forced Hyperventing System
  • Triple roll surround and exponential cone geometry
Technical Specifications

General specifications
Cone Design: Curved
Effective piston diameter: 330 mm / 12.99 inch
Frequency range: 40 - 3000 Hz
Hypervented magnetic structure: Yes
Kind of layers: inside/outside
Magnets: Ceramic
Max. Excursion Before Damage: 40 mm / 1.57 inch
Minimim Impedance: 6 ohm
Nominal Diameter: 15 inch / 381 mm
Number of layers: 2
Power handling capacity: 500 W
Program Power: 1000 W
Rated Impedance: 8 ohm
Sensitivity: 98 dB
Spider: Single
Surround Design: Triple roll
Surround Material: Polycotton
Top Plate Thickness: 10 mm / 0.39 inch
Voice Coil Diameter: 3.0 inch / 76 mm
Voice Coil Material: Aluminium
Voice Coil Winding Material: 17 mm / 0.67 inch

Mounting Information
Bolt circle diameter: 371-376 mm / 14.61-14.8 inch
Bolt hole diameter: 7 mm / 0.28 inch
Front mount baffle cut-out: 354 mm / 13.94 inch
Overall diameter: 393 mm / 15.47 inches
Rear mount baffle cut-out: 354 mm / 13.94 inch
Volume occupied by the driver: 4.5 liters / 0.18 ft3

Size
Diameter: 393 mm / 15.47 inches
Height: 167 mm / 6.57 inches
Weight: 8 kg / 17.64 lbs

Standard compliance
CE marking: Yes

Thiele - small parameters
BL factor (BL): 18.00 T x m
DC resistance (Re): 5.40 ohm
Effective moving mass (Mms): 92 gr
Effettive piston area (Sd): 0.09 m2
Electrical factor (Qes): 0.37 Qes
Equivalent Cas air loaded (Vas): 195 liters
Half-space efficency (Eff): 2.80%
Max. linear excursion (Xmax): 6 mm
Mechanical factor: 5.00 Qms
Resonance frequency (Fs): 38 Hz
Total factor: 0.34 Qts
Voice coil inductance @ 1kHz (Le1k): 0.52 mH