RCF højttalerenhed LF21X451 21" Keramisk 1200W

RCF 21" Ceramic woofer 2000W rms 4000W program 4,5"

LF21X451 er en lavfrekvens-transducer med linær frekvensrespons, høj power-handling og lav power-kompression. Den tilbyder en fibre-loaded cone sammen med et high-excursion triple-roll, geometry surround. Denne kombination leverer sublim styrke og en maksimal peak to peak excursion på 54 mm. Det nye dual-forced hyper-venting system garanterer en effektiv voice-coil-ventilation for minimal power-kompression og power-handling.

Nominal Diameter: 530 mm
Rated Impedance: 8 Ohm
Program Power: 4000 W AES
Power handling capacity: 2000 W AES
Sensitivity: 97 dB
Frequency Range: 28 Hz ÷ 1000 Hz
Effective Piston Diameter: 470 mm
Max Excursion Before Damage (peak to peak): 54 mm
Minimum Impedance: 6.7 Ohm
Voice Coil Diameter: 115 mm
Voice Coil Material: Copper
Voice Coil Winding Depth: 34 mm
Number of layers: 2
Kind of layer: inside / outside
Top Plate Thickness: 15 mm
Cone Material: No pressed pulp
Cone Design: Curved
Surround Material: Polycotton
Surround Design: Triple roll
DC resistance: 5.4 Ohm
Mechanical factor: 6.9
Electrical factor: 0.39
Total factor: 0.37
BL Factor: 30.5 T · m
Effective Moving Mass: 355 g
Equivalent Cas air load: 385 liters
Effettive piston area: 0.173 m²
Max. linear excursion (mathematical): 13.5 mm
Voice - coil inductance @ 1kHz: 2.9 mH
Half-space efficiency: 2.2 %
Overall Diameter: 547 mm
Bolt Circle Diameter: 527 mm
Bolt Hole Diameter: 6.5 mm
Front Mount Baffle Cut-out: 512 mm
Rear Mount Baffle Cut-out: 512 mm
Depth: 230 mm
Volume occupied by the driver: 6.5 / 0.229 liters/ft³
Net Weight: 15.5 kg

Information

Størrelse:	21"

Størrelse

Vægt:	15,5 kg
Diameter:	547 mm
Dybde:	54,7
Højde:	245 mm

Forsendelsesinformation

Pakke Bredde:	584 mm
Pakke Dybde:	604 mm
Pakke højde:	284 mm
Pakke Vægt:	18,5 kg