Гитарный динамик JENSEN LOUDSPEAKERS CH8/20 (8 Ohm). Инструкция на английском языке

®
JCH 8/20 - 8 ?
Guitar Loudspeaker
music industries                                                     Ref. # ZJ04080
GENERAL CHARACTERISTICS                             ELECTRICAL CHARACTERISTICS
Nominal Overall Diameter  .................    207 mm      Nominal Impedance...........................  8  ?
Nominal Voice Coil Diameter ..............    25  mm      Rated Power (DIN 45573 - IEC 268.5) ......  20  W
Magnet Weight ...............................    160  g      Musical Power (DIN 45500) ..................  40  W
Flux Density...................................    1.00  T      Sensitivity @ 1 W, 1 m .......................  93.2  dB
THIELE-SMALL PARAMETERS                                        n°4 holes O 8 ? 5
Voice Coil DC Resistance ...........  R E    6.50  ?                      at 90° on O 197.0
Resonance Frequency ...............  f s    119.4 Hz                     207.0
Mechanical Q Factor................. Q MS    19.88
Electrical Q Factor...................  Q ES    2.52
Total Q Factor........................  Q TS    2.24
Mechanical Moving Mass ............ M MS    10.3 g
Mechanical Compliance.............  C MS    173  µm/N
Force Factor ..........................  B?l   4.45 Wb/m
Equivalent Acoustic Volume........  V AS    11.1 lt.                                          178.5
Maximum Linear Displacement .... X MAX    1.0 mm
Reference Efficiency ................  ? 0    0.72 %
2
Diaphragm Area ......................  S D    213.8 cm
Losses Electrical Resistance........  R ES    51.1  ?
Voice Coil Inductance @ 1kHz .....  L E    0.40 mH
1.0                               5.0
CONSTRUCTIVE CHARACTERISTICS
Magnet.................................  Ferrite
Voice Coil Winding...................  Copper                                                 49.0
Voice Coil Former....................  Epotex              67.0                          4.0
Cone ...................................  Paper
Surround...............................  Integrated Paper                O 72.0
Dust Dome ............................  Non Treated Cloth                                     18.0
Basket ................................. Pressed Sheet Steel
Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m - Impedance
+110                                                                                           500
+105
200
+100
+95                                                                                           100
d  +90
B                                                                                                50
+85                                                                                             ?
S
P
L  +80                                                                                           20
+75
10
+70
5
+65
3
+60
20          50       100     200         500       1k       2k         5k       10k    20k
Hz
Due to continuing product improvement, the features and the design are subject to change without notice.  28/05/2003
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