JB Systems dspa 1000 Mode D'emploi page 6

ENGLISH
FUNCTIONS (rear)
8. XLR input CH1: you can connect a balanced XLR signal. Wiring is as follows: PIN1=ground *
PIN2=hot(+) * PIN3=cold(-).
9. JACK input CH1: ¼" (6,3mm) stereo jacks are used to connect the balanced audio cable. Although
balanced cables should be your first choice, you can also use unbalanced mono jacks: special
conversion cables RCA/cinch to mono jack can be bought separately. The jack input can also be used to
connect the input of another amplifier in parallel, here we can also offer special cables.
10. BINDING POST output CH1: use this output when the speaker cable has no Speakon connector.
11. SPEAKON output CH1+CH2: this Speakon
connector for both CH1 and CH2. Can also be used while the amplifier is in bridge mode.
 CH1: 1+ = positive (red) wire, 1- = negative (black) wire
 CH2: 2+ = positive (red) wire, 2- = negative (black) wire
 BRIDGE: 1+ = positive (red) wire, 2+ = negative (black) wire
12. XLR input CH2: same as the XLR input for CH1 (8) but it's only used while working in stereo mode.
13. JACK input CH2: same as the jack input for CH1 (9) but it's only used while working in stereo mode.
14. BINDING POST output CH2: use this output when the speaker cable has no Speakon® connector.
15. SPEAKON output CH2: this Speakon® output is used to connect a speaker cabinet to channel2: 1+ =
positive (red) wire, 1- = negative (black) wire.
16. COOLING FAN: during its operation the amplifier produces heat that needs to be dissipated. The fan
inside the amplifier must be able to evacuate the heat in the most effective way. Therefore is it very
important not to cover any of the ventilation openings as this may result in overheating. Clean the
ventilation holes regularly with a vacuum cleaner. This increases the cooling capacity of the amplifier
fans and helps preventing temperature overheat.
17. CIRCUIT BREAKER: This is an automatic circuit breaker. When the fuse is blown, first locate and solve
the problem that caused the fuse to blow. When the problem is solved, simply push the button to reset
the circuit breaker.
18. POWER input: Use the supplied power cable to connect the amplifier to the mains.
JB SYSTEMS
®
®
output can be used for CH1 only or as a combined
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USER MANUAL
DSPA-1000 / DSPA-1500