RCF LF18X451 Original Speaker Komponen 18" 3600 Watt Ceramic Magnets

# PRODUK ORIGINAL DAN BERGARANSI RESMI , BELINYA DI " BORNEO BROTHER AUDIO " YA SAHABAT
# JAMINAN PRODUK ORIGINAL
# JAMINAN UNIT BARU ,BUKAN REKONDISI ATAU SECOND HAND
SPEAKER KOMPONEN 18 INCH 3600 WATT RCF LF18X451 ORIGINAL
FEATURES
4,5 - inch fiberglas Inside/Outside copper voice coil
3600 Watt continuous program power handling
97 dB Sensitivity
30 Hz - 1 kHz Frequency range
Dual Forced Hyperventing System
Dual spider designed with silicon based damping control
BL of 30.5 Txm to provide a faster and accurate low frequency
GENERAL SPECIFICATIONS
Nominal Diameter: 18 inch / 457 mm
Rated Impedance: 8 ohm
Program Power (watt): 3600 W
Power handling capacity: 1800 W
Sensitivity: 97.0 dB
Frequency range: 30 - 1000 Hz
Effective piston diameter: 395 mm / 15.55 inch
Max. Excursion Before Damage: 54 mm / 2.13 inch
Minimum Impedance (ohm): 6.8 ohm
Voice Coil Diameter: 4.5 inch / 114 mm
Voice Coil Winding Material: Copper
Voice Coil Length: 34 mm / 1.34 inch
Number of layers: 2
Kind of layers: inside/outside
Top Plate Thickness: 15 mm / 0.59 inch
Cone Design: Straight
Surround Material: Polycotton
Surround Design: Triple roll
Magnets: Ceramic
Dual-force air ventilation: Yes
Spider: Dual with silicon based damping control
THIELE - SMALL PARAMETERS
Resonance frequency (Fs): 30 Hz
DC resistance (Re) (ohm): 5.40 ohm
Mechanical factor: 6.70 Qms
Electrical factor: 0.29 Qes
Total factor: 0.28 Qts
Bl factor (Bl) (T x m): 30.50 T x m
Effective moving mass (Mms): 260.0 g
Equivalent Cas air loaded (Vas): 220.0 liters
Effective piston area (Sd): 0.120 m2
Max. linear excursion (Xmax): 14 mm
Voice coil inductance @ 1kHz (Le1k): 1.38 mH
Half-space efficency (Eff): 1.90%
MOUNTING INFORMATION
Overall diameter: 465 mm / 18.31 inches
Bolt circle diameter: 442-447 mm / 17.4-17.6 inch
Bolt hole diameter: 7 mm / 0.28 inch
Front mount baffle cut-out: 424 mm / 16.69 inch
Rear mount baffle cut-out: 424 mm / 16.69 inch
Volume occupied by the driver: 6.5 liters / 0.26 ft3