Rcf

LF21N451

Descrição

4,5 – inch Inside/Outside copper voice coil
3000 Watt continuous program power handling
98.5 dB Sensitivity
30 Hz – 1 kHz Frequency range
Dual-forced air ventilation for minimum power compression
Dual spider designed with silicon based damping control
BL of 34.5 Txm to provide a faster and accurate low frequency
General Specifications
Nominal Diameter: 530 / 21 mm/inch
Rated Impedance: 8 O
Program Power: 3000 W AES
Power handling capacity: 1500 W AES
Sensitivity: 98.5 dB
Frequency Range: 30 Hz ÷ 1000 Hz
Effective Piston Diameter: 470 / 18.5 mm/inch
Max Excursion Before Damage (peak to peak): 58 / 2.28 mm/inch
Minimum Impedance: 7.1 O
Voice Coil Diameter: 115 / 4.5 mm/inch
Voice Coil Material: Copper
Voice Coil Winding Depth: 34 / 1.33 mm/inch
Number of layers: 2
Kind of layer: inside / outside
Top Plate Thickness: 15 / 0.6 mm/inch
Cone Material: No pressed pulp carbon fiber reinforced
Cone Design: Curved
Surround Material: Polycotton
Surround Design: Triple roll
Thiele/Small Parameters
DC resistance: 5.6O
Mechanical factor: 6
Electrical factor: 0.27
Total factor: 0.26
BL Factor: 34.5 T · m
Effective Moving Mass: 315 g
Equivalent Cas air load: 375 liters
Effettive piston area: 0.173 m²
Max. linear excursion (mathematical): 13.2 mm
Voice – coil inductance @ 1kHz: 3.0 mH
Half-space efficiency: 4.0%
Mounting information
Overall Diameter: 547 / 21.5 mm/inch
Bolt Circle Diameter: 527 / 20.7 mm/inch
Bolt Hole Diameter: 6.5 / 0.25 mm/inch
Front Mount Baffle Cut-out: 512 / 20.1 mm/inch
Rear Mount Baffle Cut-out: 512 / 20.1 mm/inch
Depth: 250 / 9.8 mm/inch
Volume occupied by the driver: 6.5 / 0.229 liters/ft³
Net Weight: 10.9 / 24 kg/lbs
Shipping information
Shipping weight: 12.1 / 26.6 kg/lbs