RCF MB 12X351
RCF MB 12X351
The MB12X351 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 new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
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Technical Specification
Technical Specification
GENERAL SPECIFICATIONS |
| Nominal Diameter: |
| 12 inch / 305 mm |
| Rated Impedance: |
| 8 ohm |
| Program Power (watt): |
| 1400 W |
| Power handling capacity: |
| 700 W |
| Sensitivity: |
| 98.5 dB |
| Frequency range: |
| 45 - 2500 Hz |
| Effective piston diameter: |
| 260 mm / 10.24 inch |
| Max. Excursion Before Damage: |
| 40 mm / 1.57 inch |
| Minimum Impedance (ohm): |
| 7.1 ohm |
| Voice Coil Diameter: |
| 3.5 inch / 89 mm |
| Voice Coil Winding Material: |
| Copper |
| Voice Coil Length: |
| 19 mm / 0.75 inch |
| Number of layers: |
| 2 |
| Kind of layers: |
| inside/outside |
| Top Plate Thickness: |
| 10 mm / 0.39 inch |
| Cone Design: |
| Curved |
| Surround Material: |
| Polycotton |
| Surround Design: |
| M-roll |
| Magnets: |
| Ceramic |
| Dual-force air ventilation: |
| Yes |
| Spider: |
| Dual with silicon based damping control |
THIELE - SMALL PARAMETERS |
| Resonance frequency (Fs): |
| 55 Hz |
| DC resistance (Re) (ohm): |
| 5.40 ohm |
| Mechanical factor: |
| 5.90 Qms |
| Electrical factor: |
| 0.27 Qes |
| Total factor: |
| 0.26 Qts |
| Bl factor (Bl) (T x m): |
| 22.50 T x m |
| Effective moving mass (Mms): |
| 72.0 g |
| Equivalent Cas air loaded (Vas): |
| 46.0 liters |
| Effective piston area (Sd): |
| 0.050 m2 |
| Max. linear excursion (Xmax): |
| 7 mm |
| Voice coil inductance @ 1kHz (Le1k): |
| 0.90 mH |
| Half-space efficency (Eff): |
| 3.00% |
MOUNTING INFORMATION |
| Overall diameter: |
| 320 mm / 12.6 inches |
| Bolt circle diameter: |
| 293-304 mm / 11.54-11.97 inch |
| Bolt hole diameter: |
| 7 mm / 0.28 inch |
| Front mount baffle cut-out: |
| 282 mm / 11.1 inch |
| Rear mount baffle cut-out: |
| 284 mm / 11.18 inch |
| Volume occupied by the driver: |
| 2.2 liters / 0.09 ft3 |
SIZE |
| Height: |
| 143 mm / 5.63 inches |
| Diameter: |
| 320 mm / 12.6 inches |
| Weight: |
| 7.6 kg / 16.76 lbs |
SHIPPING INFORMATION |
| Package Height: |
| 194 mm / 7.64 inches |
| Package Width: |
| 354 mm / 13.94 inches |
| Package Depth: |
| 364 mm / 14.33 inches |
| Package Weight: |
| 8.4 kg / 18.52 lbs |
