Sujet Puissance d'ampli pour membranes L18P200N RCF en //

Citation : GENERAL SPECIFICATIONS
Nominal Diameter 460/18 mm/inch
Rated Impedance 8 Ohm
Program Power 1600 Watts
Power handling capacity 800 Watts
Sensitivity 1W, 1m 96 dB
Frequency Range 27-1000 Hz
Effective Piston Diameter 380/15 mm/inch
Maximum Excursion Before Damage 36/1.4 mm/inch
Minimum Impedance 7.5 Ohm
Voice Coil Diameter 100/4 mm/inch
Voice Coil Material Copper
Voice Coil Winding Depth 24/0.9 mm/inch
Number of layers 2
Kind of layer Outside
Thickness Top Plate Depth 9/0.35 mm/inch
Cone Material No pressed pulp treat
Cone Design Straight
Surround Material Polycotton treat
Surround Design Triple roll

THIELE - SMALL PARAMETERS
Resonance frequency Fs 28 Hz
DC resistance Re 6.3 Ohm
Mechanical factor Qms 7.1
Electrical factor Qes 0.32
Total factor Qts 0.31
BL factor BL 23.1 T - m
Effective Moving Mass Mms 155 gr
Equivalent Cas air load Vas 380 liters
Effective piston area Sd 0.113 m2
Max. linear excursion Xmax 9.8 mm
Voice - coil inductance @ 1KHz Le1k 2.2 mH
Half-space efficiency Eff 2.51 %

Citation : Specifications
Amplifier Gain (dB) 34.6dB
Continuous rated power (1k Hz, THD 1%) 2ohm 850 Watts
Continuous rated power (1k Hz, THD 1%) 4ohm 600 Watts
Input Impedance (balanced) 20 kΩ
Continuous rated power (1k Hz, THD 1%) 8ohm 380 Watts
Continuous rated power
(20-20k Hz, THD<0,2%) 4ohm 500 Watts
Continuous rated power
(20-20k Hz, THD<0,2%) 8ohm 300 Watts
Maximum bridged output 4ohm 1700 Watts
Maximum bridged output 8ohm 1200 Watts
Slew Rate > 30 V / µs
Electronics Type Amplifier
Network Control (IRIS-Net) No
Total harmonic distortion < 0.05 %
Intermodulation Distortion (SMTPE) < 0.08 %
Signal-to-noise ratio (A–weighted) > 105 dB
Input Sensitivity 0 dBu / +6 dBu
Weight Net 16 kg ( 35.27 lbs )
Dimensions (HxWxD) 133 x 483 x 386 mm