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music industries
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Professional Audio Loudspeaker
Ref. # ZJ0651
0
GENERAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Nominal Overall Diameter .................
318 mm
Nominal Impedance ..........................
8
:
Nominal Voice Coil Diameter ..............
50 mm
Rated Power (DIN 45573 - IEC 268.5) ......
150 W
Magnet Weight ...............................
1450 g
Musical Power (DIN 45500) ..................
300 W
Flux Density ..................................
1.16 T
Sensitivity @ 1 W, 1 m .......................
97.6 dB
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance...........
R
E
6.30
:
Resonance Frequency ..............
f
s
53.0 Hz
Mechanical Q Factor................
Q
MS
11.50
Electrical Q Factor..................
Q
ES
0.44
Total Q Factor.......................
Q
TS
0.42
Mechanical Moving Mass ...........
M
MS
35.2 g
Mechanical Compliance ............
C
MS
255.0
P
m/N
Force Factor .........................
B×l
12.95 Wb/m
Equivalent Acoustic Volume.......
V
AS
86.2 lt.
Maximum Linear Displacement ...
X
MAX
2.00 mm
Reference Efficiency ...............
K
0
2.83 %
Diaphragm Area .....................
S
D
490.8 cm
2
Losses Electrical Resistance .......
R
ES
164.0
:
Voice Coil Inductance @ 1kHz.....
L
E
0.92 mH
CONSTRUCTIVE CHARACTERISTICS
Magnet ...............................
Ferrite
Voice Coil Winding..................
Copper
Voice Coil Former...................
Kapton
Cone ..................................
Paper
Surround .............................
Treated Cloth
Dust Dome ........................... Solid Paper
Basket ................................ Pressed Sheet Steel
Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m -
Impedance
03/04/2001
Loudspeakers
R & D - Via G. Galilei, 20 - 60010 PASSO RIPE (AN) - ITALY - Tel. +39-071-7958072 - Fax +39-071-7959006 - E-mail: lab@sica.it
318.0
n° 8 holes 5×9
on Ø 300.0
285.
0
6.
3
4.
0
Ø 154.0
89.
7
10.
0
39.
0
130.
7
3
500
5
10
20
50
100
200
:
+ 60
+ 110
+ 65
+ 70
+ 75
+ 80
+ 85
+ 90
+ 95
+ 100
+ 105
d
B
S
P
L
20
20k
50
100
200
500
1k
2k
5k
10k
H z
