®
music industries
JCH 12/50 - 8
Ω
Guitar Loudspeaker
Ref. # ZJ06220
GENERAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Nominal Overall Diameter .................
306 mm
Nominal Impedance...........................
8
Ω
Nominal Voice Coil Diameter ..............
32 mm
Rated Power (DIN 45573 - IEC 268.5) ......
50 W
Magnet Weight ...............................
426 g
Musical Power (DIN 45500) ..................
100 W
Flux Density................................... 1.10 T
Sensitivity @ 1 W, 1 m .......................
94.3 dB
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance ...........
R
E
6.30
Ω
Resonance Frequency ...............
f
s
82.0 Hz
Mechanical Q Factor.................
Q
MS
7.50
Electrical Q Factor...................
Q
ES
1.73
Total Q Factor........................
Q
TS
1.40
Mechanical Moving Mass ............
M
MS
29.4 g
Mechanical Compliance.............
C
MS
129.0
µ
m/N
Force Factor ..........................
B×l
7.43 Wb/m
Equivalent Acoustic Volume........
V
AS
43.6 lt.
Maximum Linear Displacement ....
X
MAX
1.50 mm
Reference Efficiency ................
η
0
1.33 %
Diaphragm Area ......................
S
D
490.9 cm
2
Losses Electrical Resistance........
R
ES
28.0
Ω
Voice Coil Inductance @ 1kHz .....
L
E
0.66 mH
CONSTRUCTIVE CHARACTERISTICS
Magnet.................................
Ferrite
Voice Coil Winding...................
Copper
Voice Coil Former....................
Epotex
Cone ...................................
Paper
Surround...............................
Integrated Paper
Dust Dome ............................
Non Treated Cloth
Basket ................................. Pressed Sheet Steel
Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m - Impedance
Due to continuing product improvement, the features and the design are subject to change without notice.
31/03/2005
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
305.5
277.
0
4.
0
2.
5
n° 8 holes 9 × 6.5
at 45° on Ø 293.5
26
.0
Ø 102.0
10
8.
5
6.
0
82
.5
3
500
5
10
20
50
100
200
Ω
+60
+110
+65
+70
+75
+80
+85
+90
+95
+100
+105
d
B
S
P
L
20
20k
50 100 200
50 0 1k 2k
5k 10 k
H z
