Description
RCF LF21N401 21" WOOFER FREE SHIPPING!! AUTHORIZED DISTRIBUTOR!!!
The LF21N401 is a high power handling and efficiency transducer specially designed to provide powerful and accurate sub-bass frequencies with low distortion and low power compression. With a fast time response, the LF21N451 uses a fiber loaded cone assembly along a large triple roll surround. This combination provides emarkable strength and control. Double silicon spider system ensures excellent control during large excursions. A fully optimized T-pole design generate the minimum amount of flux modulation. The Dual-forced air venting system provides a very efficient voice coil ventilation to minimize the power compression.
Message with any questions!!! We have all the other major PRO Audio Speaker Brands and Models.
We sell to Dealers as well.
SPECIFICATIONS
General specifications CONE DESIGN:
Curved
DUAL-FORCE AIR VENTILATION:
Yes
EFFECTIVE PISTON DIAMETER:
470 mm / 18.5 inch
FREQUENCY RANGE:
25 - 1000 Hz
KIND OF LAYERS:
inside/outside
MAGNETS:
Neodymium
MAX. EXCURSION BEFORE DAMAGE:
60 mm / 2.36 inch
MINIMIM IMPEDANCE (OHM):
6 ohm
NOMINAL DIAMETER:
21 inch / 533 mm
NUMBER OF LAYERS:
2
POWER HANDLING CAPACITY (WATT):
1500 W
PROGRAM POWER (WATT):
3000 W
RATED IMPEDANCE (OHM):
8 ohm
SENSITIVITY (DB):
98 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:
4.0 inch / 102 mm
VOICE COIL MATERIAL:
Copper
VOICE COIL WINDING MATERIAL:
31 mm / 1.22 inch
Mounting Information BOLT CIRCLE DIAMETER:
527 mm / 20.75 inch
BOLT HOLE DIAMETER:
512 mm / 20.16 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:
605 mm / 23.82 inches
PACKAGE HEIGHT:
605 mm / 23.82 inches
PACKAGE WEIGHT:
10 kg / 22.05 lbs
PACKAGE WIDTH:
585 mm / 23.03 inches
Size DIAMETER:
547 mm / 21.54 inches
HEIGHT:
234 mm / 9.21 inches
WEIGHT:
8.8 kg / 19.4 lbs
Standard compliance CE MARKING:
Yes
Thiele - small parameters BL FACTOR (BL) (T X M):
27.60 T x m
DC RESISTANCE (RE) (OHM):
5.00 ohm
EFFECTIVE MOVING MASS (MMS) (GR):
318 gr
EFFETTIVE PISTON AREA (SD) (M2):
0.12 m2
ELECTRICAL FACTOR (QES):
0.40 Qes
EQUIVALENT CAS AIR LOADED (VAS) (LITERS):
374 liters
HALF-SPACE EFFICENCY (EFF) (%):
2.50%
MAX. LINEAR EXCURSION (XMAX) (MM):
11 mm
MECHANICAL FACTOR (QMS):
6.80 Qms
RESONANCE FREQUENCY (FS) (HZ):
30 Hz
TOTAL FACTOR (QTS):
0.37 Qts
VOICE COIL INDUCTANCE @ 1KHZ (LE1K) (MH):
1.70 mH
|
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.