Haut-parleur sono 30cm FANE Crescendo 12MB
[CRES 12MB-8] Avis/Critiques The Crescendo mid bass drivers are intended for use in two-way ported enclosures, such as the classic bass driver plus horn tweeter or compression driver format. All feature die cast chassis with long throw motor systems and high linearity suspensions allowing solid bass reproduction at high-power levels. The drivers exhibit smooth frequency responses to give a balanced tonal characteristic when properly matched to appropriate high-frequency drivers.
The 12MB is designed for use in 25 to 80 litre ported enclosures and features a 2.5-inch voice coil, 300 Watt power handling and 97.5 dB sensitivity.
Electro Mechanical Specifications
Nominal Chassis Diameter 12 inch/305 mm
Impedance 8 Ω1
Power Handling 300 (A.E.S.)2
Maximum Output Continuous/Peak 119/125 dB
Power Compression at Rated Power 4 dB
Usable Frequency Range (-6 dB) 45 Hz-3.5 kHz
Average Sensitivity (in above range) 1 W/1 m 97.5 dB3
Resonance 50 Hz
Moving Mass inc. Air Load 55 grams
BL Product (Newtons/amp) 17.6
Minimum Impedance (Zmin) 7 Ω
Effective Piston Diameter 10.03 inch/255 mm
Flux Density 1.28 Tesla
Magnetic Gap Depth 0.31 inch/8 mm
Coil Winding Height 0.65 inch/16.6 mm
Voice Coil Length 63 feet/19.2 m
Magnet Weight 78 oz/2.2 kg
Maximum Cone Displacement 0.47 inch/12 mm
Peak Displacement Volume of Cone, Vd 0.440 litres
Voice Coil Diameter 2.5 inch/63.7 mm
Thiele & Small Parameters
Resonant Frequency fs 50 Hz
D.C Resistance Re 5.6 Ω
Qts 0.295
Qes 0.314
Qms 4.8
Mms (grams) 55
Cms (microns per Newton) 184
BL Product 17.6 Tesla metres
Vas 67 litres
Reference Efficiency no 2.58 %
Piston Area Sd 0.051 m2
Xmax 4.3 mm
Mounting Information
Overall Diameter 13"/330.2 mm
Width Across Flats 12.19"/309.5 mm
Flange Thickness 0.305"/7.8 mm
Baffle Hole Diameter, Front Mount 11.03"/281 mm
Gasket Supplied Rear
Fixing Holes 4 x 0.218" diam on 12.5 PCD
4 x 5.5 mm diam on 318 PCD
Depth 5.33"/135.5 mm
Weight 14.8 lb/6.7 kg
Recommended Enclosure Volume 0.88-2.83 cu ft/25-80 litres
Volume Displaced by Driver 0.095 cu ft/2.7 litres
Shipping Weight 17.0 lb/7.7 kg
Packing Carton Dimensions 340 x 340 x 222 mm
Materials of Construction
Coil Former Fibreglass
Voice Coil Copper
Magnet Material Ferrite
Chassis Die Cast Aluminium
Cone Curvilinear Paper
Surround/Edge Termination Polyvinyl Damped Half Roll Linen
Dust Dome Solid Paper
Connectors Push-button Spring Terminals
Polarity Positive Voltage at Red Terminal
Causes Forward Motion of Cone
Frequency Response Data
1 Please inquire about alternative impedances.
2 A.E.S. power handling test. Pink noise bandpass filtered at 12 db per octave with cutoff frequencies of 30 Hz and 300 Hz. Driver mounted in free air, test signal applied at rated power for two hours.
3 The average output across the usable frequency range when applying 1 W/1 m into the nominal impedance. Ie: 2.83 V/8 ohms, 4 V/16 ohms.
Fane response curves are measured under the following conditions: All speakers are tested at 1 W/1 m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1 m from wall/baffle | 2 ft. X 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with fiberglass on all six surfaces (three with custom-made wedges).
Computer predicted bass response
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