JBL 8, Service Manual

Page: 2 / 16

1
Powered Subwoofer ARC SUB 8
TABLE OF CONTENTS
SPECIFICATIONS..........................................................1
WARRANTY ...................................................................2
SAFETY SYMBOLS.......................................................2
CONTROLS AND THEIR FUNCTION...........................3
TEST PROCEDURES....................................................4
TROUBLESHOOTING ...................................................5
ARC SUB 8 AMPLIFIER BLOCK DIAGRAM ................7
CABINET EXPLODED VIEW.........................................8 ARC SUB 8 ELECTRICAL PARTS LISTS....................9
ARC SUB 8 MECHANICAL PARTS LISTS ................10
PACKAGING EXPLODED VIEW.................................11
INTEGRATED CIRCUIT DIAGRAM ............................12
PRINTED CIRCUIT BOARD (TOP VIEW) ..................13
SCHEMATIC DIAGRAM 1 ...........................................14
SCHEMATIC DIAGRAM 2 ...........................................15
SPECIFICATIONS
Amplifier Power RMS . . . . . . . . . . . 80 Watts @ 1% THD
Drivers . . . . . . . . . . . . . . . . 8" with high-polymer-laminated cone
Inputs . . . . . . . . . . . . . . . . Line level and High Level
Outputs*
. . . . . . . . . . . . . . . High level with High-Pass filter at 180Hz
Crossover Frequency . . . . . . . . . . . 50-150Hz
(continuosly variable)
Frequency Response . . . . . . . . . . . 45Hz to 150Hz
(determined by crossover setting)
Input Impedance . . . . . . . . . . . . . 20k ohm
Input Sensitivity . . . . . . . . . . . . . 220mV
External Dimensions (Inches)
Height . . . . . . . . . . . . . . . . 9 …
Width . . . . . . . . . . . . . . . . 14"
Depth . . . . . . . . . . . . . . . . 12 ‰
Weight . . . . . . . . . . . . . . . . 18 lbs
External Dimensions (mm)
Height . . . . . . . . . . . . . . . . 235 mm
Width . . . . . . . . . . . . . . . . 356 mm
Depth . . . . . . . . . . . . . . . . 318 mm
Weight . . . . . . . . . . . . . . . . 8.1 kg
* High-Level (speaker) outputs are active only if high-level input are used.
Occasional refinements may be made to existing products without notice, but will always meet or exceed
original specifications unless otherwise stated.
This Product is Part of the ARC CINEMA II SYSTEM