JBL GTQ 190 Owner'S Manual Download Page 7

07

Owner’

s Manual

Mounting Positions

Place the amplifier in the installation
location. Use a pen or pencil to mark the
mounting screw hole locations. Set the
amplifier aside and drill the holes for the
mounting screws. (Note: If the surface
you are mounting the amp to is covered
with carpeting or upholstery, cut a small
“x” in the material at each screw hole
location before drilling the holes. This
will help prevent tearing or stretching of
the material and carpet fibers from being
pulled out.) Set the amplifier in position
and align the holes on its side with the
holes previously drilled. Put washers on
the sheet metal screws provided and
drive them into the mounting panel.
Tighten the screws evenly until the unit is
securely mounted.

Wiring

Proper wiring of the GTQ amplifier and
the associated components is extremely
important for proper performance and
long-term reliability. Using the proper
type of wire is very important. If a
specific type of wire is required for a
certain application, it will be noted.
Route the wiring through the car
carefully. Do not allow wires to lay
against sharp sheet metal edges or any
other surfaces that might wear away or
cut through the insulation of the wire.
Use insulated strain reliefs, rubber
grommets and plastic tubing to protect
the wires whenever they are run through
sheet metal panels or are placed where
they might be pulled or damaged.

+

Fuse

Fuse

Fuse

+

+
+

+

Power Supply Connections

The power input and remote turn-on
wires are connected to the GTQ amplifier
via the power connector on the end of
the amplifier.

+12V Battery Wire

• Connect a wire directly from the +12
volt terminal of the battery to the +
Battery terminal on the amplifier. Use a
minimum of AWG #10 for the GTQ190.
Use wire that is heat- and oil-resistant
whenever running wires through the
engine compartment. All wire-to-wire
connections should be soldered and
insulated with heatshrink tubing, or
connected through a high-quality
insulated crimp-on connector or secure
set-screw-type terminal blocks. Never
leave bare wire exposed. Terminate wires
with crimp or solder-on lug terminals
whenever appropriate.
• GTQ amplifiers will draw large amounts
of current from the vehicle’s electrical
system, enough to overload conventional
vehicle wiring. Therefore the +12 volt
power supply must be taken directly from
the positive side of the battery. Do not
connect to the vehicle’s fuse block or to a
wire feeding other accessories.
• To prevent electrical system damage or
fire, a fuseholder and fuse (not included –
30 amps) must be installed in the power
supply wire as close to the battery as
possible, and before the wire travels
through the firewall or other metal panel.

GTQ 190 - English  06/03/98 11:49  Side 7

Summary of Contents for GTQ 190

Page 1: ...ry Wire 7 Ground Wire 8 Remote Connection 8 Speaker Connections 8 Audio Input Connections 9 Line Level Input Connections 9 Speaker Level Input Connections 10 Simultaneous Speaker Level Line Level 10 M...

Page 2: ...able High Pass and Low Pass Crossovers 2 Pairs of Preamp Outputs No Current Limiting Oversized Floating Rail MOSFET Switch Mode Power Supply Common Sense 2 Way Turn On with Remote Out Capability to Tu...

Page 3: ...the Group 2 Input as desired 11 Set the mode switches to Stereo Left Right or Left Input Only operation for each group 12 Double check your switch settings Reconnect the negative battery cable Note In...

Page 4: ...ection when you wish to add CD capability to a factory cassette stereo Switching from one source to the other is as simple as turning the desired source on and turning the undesired one off no additio...

Page 5: ...protection whenever cutting drilling or filing any parts of the vehicle Wear ear protection when using high speed drills saws sanders or grinders We want you to be able to enjoy the system once it is...

Page 6: ...ilter for use with satellite speakers or tweeters on an amplifier group 11 Mode Switches These switches are used to set the input mode for both preamp and speaker level inputs Set the switch to ST ere...

Page 7: ...lastic tubing to protect the wires whenever they are run through sheet metal panels or are placed where they might be pulled or damaged Fuse Fuse Fuse Power Supply Connections The power input and remo...

Page 8: ...n If the head unit has a 12 volt automatic antenna or amplifier remote activation wire connect it to the REM IN OUT connector on the GTQ amplifier When the amplifier is turned on there is a time delay...

Page 9: ...ire Keep the wire as short as possible Do not splice together shielded wires Do not run audio signal wires alongside power wires for an extended length either for the amp or the vehicle s standard pow...

Page 10: ...The Universal Interface circuitry of the GTQ amplifier will isolate the inputs from each other while mixing both signals Therefore switching from one source to the other is as simple as turning the un...

Page 11: ...nt Characteristics Power Consumption Operating the GTQ amplifier when the vehicle is not running may discharge the battery At high volumes the amplifier can draw as much as 60 amps for brief bursts Af...

Page 12: ...L GR 1 GR 2 L R R L C C GR 1 GR 2 R L L R L R L R L R L R L R L R L R L L R L R L B A R L L R GR 1 L GR 1 R GR 2 R GR 2 L GR 2 R GR 1 GR 2 L R GR 1 L GR 1 R GR 2 L c GTQ 190 English 06 03 98 11 50 Sid...

Page 13: ...noise generally appearing as hiss is usually the result of improper input gain sensitivity adjustment With the proper setting your JBL amplifier will not create this noise but will amplify any noise...

Page 14: ...Start at the head unit and work back checking each component individually Power wires carrying high currents may induce noise in nearby signal wires Make sure that power wires and signal wires do not...

Page 15: ...Power Line Level Input Impedance 10k Ohms Speaker Level Input Impedance 15 Ohm Speaker Level Input Sensitivity 200mV 8V RMS Preamp Output Level Preamp Input V out V in Speaker Input V out 1 2 V in Mi...

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