Controls & Connectors; Indicators; Input/Output - JBL A6000GTi Service Manual

137159-1 Rev. 1 A6000GTi Service Manual
2.3. Controls & Connectors
Power: REM voltage of 5.0VDC will power up the amplifier. REM voltage of less than
3.0VDC will power down the amplifier.
Mode: Turn power off before switching. A two-position switch located in the middle of the
input panel, when switched to 2CH/BR operates the amplifier either in two "mono"
channels or one bridge channel. When switched to PARALLEL, the amplifier joins the two
output channels to deliver twice the output current.
Sensitivity: A continuously variable rotary level control that when turned to the maximum
setting with an input of .250mV RMS the amplifier will deliver maximum output power.
When turned to the minimum setting with an input of 8.0Vrms the amplifier will deliver
maximum output power.
Slope: Two-position switch used to control filter rolloff. Switch in 12 pos yields 12dB per
octave rate of rolloff. Switch in 24 pos yields 24dB per octave rate of rolloff.
LP Freq: Crossover frequency adjustment from 32Hz to 320Hz.
DBO: Dynamic Bass Optimization. Two-position switch turns DBO on and off.
Continuous rotary adjustment to increase/decrease bass level. Another adjustment for HP
rolloff.

2.4. Indicators

Signal: A blue LED, which flashes when a very low-level signal is present at input.
Clip: A red LED, which turns on when distortion becomes audible in the amplifier output.
Fault: Normally off, this red indicator will light if amplifier output stage becomes non-
operational.
Power: A blue LED that turns on when the amplifier has been turned on and has power.

2.5. Input/Output

Input Connector: One RCA connector for each channel.
Input Impedance: 25k ohms
Output Connectors: Custom gold plated terminals with set screws.
Power Connectors: Custom gold plated terminals with set screws accepting 0 gauge
hookup wire.
Wiring Diagram: See A6000GTi Owner's Manual
2003 Crown Audio, Inc.
Specification 2-2