l14rc/ph 761 woofer

l14rc/ph 761 woofer
H 761
OF NORWAY
WOOFER
Response curve recorded in anechoic chamber (Free-field, 4 pi radiation) with 0.5m microphone distance. The
loudspeaker is mounted in a closed box of 7 l net. volume.
L14RC/P
L14RC/P is a 5" High Fidelity woofer unit with a stiff and stable
injection moulded metal chassis. The stiff, yet light aluminium cone
and the low loss rubber surround show no sign of the familiar 500-1500 Hz
cone edge resonance and distortion associated with soft cones. On the
other hand, the cone break up modes at higher frequencies call for
special attention in the crossover design work. A high temperature voice
coil wound on an aluminium voice coil former gives a high power handling
capacity. The phase plug gives low compression due to temperature
variations in the voice coil, high power handling capacity and eliminates
resonances which would otherwise occur in the volume between the dust
cap and the pole piece.
NOMINAL IMPEDANCE
RECOMMENDED FREQUENCY RANGE
SHORT TERM MAXIMUM POWER *
LONG TERM MAXIMUM POWER*
200
80
Ohms
VOICE COIL RESISTANCE
Hz
VOICE COIL INDUCTANCE (EQUIVALENT)
W
FORCE FACTOR
W14-111
Ohms
mH
5.9
N/A
W
FREE AIR RESONANCE
39
Hz
85.5
dB SPL
MOVING MASS
9.6
g
OPERATING POWER (96 dB SPL , 1 m)
11.0
W
AIR LOAD MASS IN IEC BAFFLE
0.6
g
SUSPENSION COMPLIANCE
1.7
mm/N
VOICE COIL DIAMETER
26
mm
SUSPENSION MECHANICAL RESISTANCE
1.4
Ns/m
VOICE COIL HEIGHT
14
mm
EFFECTIVE PISTON AREA
75
sq.cm
AIR GAP HEIGHT
6.0
mm
8.0
mm
MAXIMUM COIL TRAVEL ( p-p)
14.0
mm
MAGNETIC GAP FLUX DENSITY
0.90
T
MAGNET WEIGHT
0.25
Kg
TOTAL WEIGHT
0.80
Kg
VAS
QMS
QES
QTS
* = IEC 268-5
OCT. 96
5.5
0.70
CHARACTERISTIC SENSITIVITY (1W , 1m)
LINEAR COIL TRAVEL ( p-p )
NOTES
8
45-3000
14.0 Litres
1.8
0.38
0.31
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