Speaker RCF LF18X401 Komponen 18 Inch Original Made In Italy

SPECIFICATIONS
General specifications
NOMINAL DIAMETER:
18 inch / 457 mm

RATED IMPEDANCE:
8 ohm

PROGRAM POWER:
3000 W

POWER HANDLING CAPACITY:
1500 W

SENSITIVITY:
97.5 dB

FREQUENCY RANGE:
25 - 1000 Hz

EFFECTIVE PISTON DIAMETER:
395 mm / 15.55 inch

MAX. EXCURSION BEFORE DAMAGE:
50 mm / 1.97 inch

MINIMIM IMPEDANCE:
6.5 ohm

VOICE COIL DIAMETER:
4.0 inch / 102 mm

VOICE COIL WINDING MATERIAL:
Copper

VOICE COIL LENGTH:
30 mm / 1.18 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):
5.40 ohm

MECHANICAL FACTOR:
7.40 Qms

ELECTRICAL FACTOR (QES):
0.31 Qes

TOTAL FACTOR:
0.30 Qts

BL FACTOR (BL):
26.50 T x m

EFFECTIVE MOVING MASS (MMS):
215.0 g

EQUIVALENT CAS AIR LOADED (VAS):
274.0 liters

EFFETTIVE PISTON AREA (SD):
0.120 m2

MAX. LINEAR EXCURSION (XMAX):
12.0 mm

VOICE COIL INDUCTANCE @ 1KHZ (LE1K):
0.83 mH

HALF-SPACE EFFICENCY (EFF):
2.30%
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:
425 mm / 16.73 inch

VOLUME OCCUPIED BY THE DRIVER:
6.5 liters / 0.26 ft3
Standard compliance
CE MARKING:
Yes