LF21X451
SPECIFICATIONS
General specifications
CONE DESIGN:
Curved
DUAL-FORCE AIR VENTILATION:
Yes
EFFECTIVE PISTON DIAMETER:
470 mm / 18.5 inch
FREQUENCY RANGE:
28 - 1000 Hz
KIND OF LAYERS:
inside/outside
MAGNETS:
Ceramic
MAX. EXCURSION BEFORE DAMAGE:
54 mm / 2.13 inch
MINIMIM IMPEDANCE:
6 ohm
NOMINAL DIAMETER:
21 inch / 533 mm
NUMBER OF LAYERS:
2
POWER HANDLING CAPACITY:
2000 W
PROGRAM POWER:
4000 W
RATED IMPEDANCE:
8 ohm
SENSITIVITY:
97 dB
SPIDER:
Dual with silicon based damping control
SURROUND DESIGN:
Triple roll
SURROUND MATERIAL:
Polycotton
TOP PLATE THICKNESS:
15 mm / 0.59 inch
VOICE COIL DIAMETER:
4.5 inch / 114 mm
VOICE COIL WINDING MATERIAL:
Copper
VOICE COIL LENGTH:
34 mm / 1.34 inch
Mounting Information
BOLT CIRCLE DIAMETER:
527 mm / 20.75 inch
BOLT HOLE DIAMETER:
7 mm / 0.28 inch
FRONT MOUNT BAFFLE CUT-OUT:
512 mm / 20.16 inch
OVERALL DIAMETER:
547 mm / 21.54 inches
REAR MOUNT BAFFLE CUT-OUT:
512 mm / 20.16 inch
VOLUME OCCUPIED BY THE DRIVER:
6.5 liters / 0.26 ft3
Shipping informations
PACKAGE DEPTH:
604 mm / 23.78 inches
PACKAGE HEIGHT:
284 mm / 11.18 inches
PACKAGE WEIGHT:
18.5 kg / 40.79 lbs
PACKAGE WIDTH:
584 mm / 22.99 inches
Size
DIAMETER:
547 mm / 21.54 inches
HEIGHT:
245 mm / 9.65 inches
WEIGHT:
15.5 kg / 34.17 lbs