JBL GTS 100 (serv.man2) User Manual / Operation Manual ▷ View online
GTS100
GTS100
2/1 CHANNEL AUTOMOTIVE POWER AMPLIFIER
OWNER’S MANUAL
2/1 CHANNEL AUTOMOTIVE POWER AMPLIFIER
OWNER’S MANUAL
JBL 1394 Manual 7/17/98 11:49 AM Page 1
Table Of Contents
Introduction ..................................................................................................3
Features.......................................................................................................4
About Installation .........................................................................................4
Quick Start ...................................................................................................5
System Design Using the GTS100 ..............................................................6
Typical Applications .....................................................................................7
Installation Precautions................................................................................9
Physical Installation .....................................................................................9
Controls and Connectors ...........................................................................10
Mounting Instructions.................................................................................12
Wiring.........................................................................................................12
Power Supply Connections........................................................................14
Audio Input Connections............................................................................15
Speaker Connections ................................................................................17
Operation ...................................................................................................20
Solving Noise Problems.............................................................................21
Maintenance ..............................................................................................24
Additional System Configurations for Add-On or Upgrade ........................24
In Case of Difficulty ....................................................................................27
Specifications.............................................................................................29
Owner’s Warranty Information Records
Model Number
Serial Number
Dealer Name
City, State, Zip
Sales Receipt Number
Date of Purchase
JBL 1394 Manual 7/17/98 11:49 AM Page 2
Introduction
Thanks for purchasing your new
GT series automotive amplifier. The
GT series amplifier you have chosen
includes many unique features to
enhance its performance and utility.
The power amplifier circuitry is a
fully discrete design notable for low
distortion and unusually clean and clear
reproduction quality. Your GT series
amplifier will easily connect to virtually
any car audio system, whether it is
factory installed or purchased
separately.
GT series automotive amplifier. The
GT series amplifier you have chosen
includes many unique features to
enhance its performance and utility.
The power amplifier circuitry is a
fully discrete design notable for low
distortion and unusually clean and clear
reproduction quality. Your GT series
amplifier will easily connect to virtually
any car audio system, whether it is
factory installed or purchased
separately.
In addition to conventional preamp-level
inputs, this model features JBL’s
Universal Interface design, which facili-
tates simple connection to factory
radios with the low distortion that is usu-
ally only associated with preamp level
connection. With Universal Interface, a
factory radio can be used either as the
main music source or combined with a
CD changer which includes volume
control capability, simultaneously
connected directly to the amplifier.
inputs, this model features JBL’s
Universal Interface design, which facili-
tates simple connection to factory
radios with the low distortion that is usu-
ally only associated with preamp level
connection. With Universal Interface, a
factory radio can be used either as the
main music source or combined with a
CD changer which includes volume
control capability, simultaneously
connected directly to the amplifier.
3
By providing this two-unit direct connec-
tion, Universal Interface circuitry elimi-
nates the need for an FM modulator to
connect a CD player to factory radios,
improving the fidelity of digital playback.
tion, Universal Interface circuitry elimi-
nates the need for an FM modulator to
connect a CD player to factory radios,
improving the fidelity of digital playback.
Also, when using a high-powered (BTL)
radio through the speaker-level inputs,
Common Sense turn-on circuitry
senses the common-mode voltage
present on the radio’s speaker wires
and turns the amplifier on without an
additional “remote” wire. When the
speaker-level inputs are used exclu-
sively, the preamp-level inputs may be
converted to preamp-level outputs to
drive additional amplifiers or signal
processors.
radio through the speaker-level inputs,
Common Sense turn-on circuitry
senses the common-mode voltage
present on the radio’s speaker wires
and turns the amplifier on without an
additional “remote” wire. When the
speaker-level inputs are used exclu-
sively, the preamp-level inputs may be
converted to preamp-level outputs to
drive additional amplifiers or signal
processors.
In addition, the built-in active crossover
provides either high-pass or low-pass
operation. This lets your GT series
amplifier power either subwoofer or
main speakers in a bi-amplified system,
without the expense of an additional
crossover.
provides either high-pass or low-pass
operation. This lets your GT series
amplifier power either subwoofer or
main speakers in a bi-amplified system,
without the expense of an additional
crossover.
JBL 1394 Manual 7/17/98 11:49 AM Page 3
4
Features
•
Bridgeable 2/1 Channel Operation
•
Simultaneous Stereo + Mono
Operation
•
Built-in Staggered 18dB/Octave
100Hz High-Pass and 80Hz Low-Pass
Crossover
Crossover
•
No Current Limiting
•
Oversized Floating Rail MOSFET
Switch-Mode Power Supply
•
Common Sense 2-way Turn-On
•
Stealth Remote Silent Turn-On
Circuitry with Power-On Indicator
•
Continuously Adjustable Gain Controls
•
Capable of Single-Ended Operation
Into 2-Ohm Loads.
•
Fully Complementary, Direct-Coupled,
Discrete Power Amplifier Circuitry
•
Gold Plated RCA Input Connectors
•
Preamp Output Capability
•
Convenient Easy-Disconnect Power
and Speaker Connections
•
Third Order (18dB per Octave),
Capacitive/Inductive Power-Supply
Filtering
Filtering
•
Input Mode Switching
•
Made in USA
About Installation
Although the GTS100 was designed to
make installation as easy as possible, it
is a sophisticated product that requires
proper installation to realize its full per-
formance potential. Skill with tools, an
understanding of basic electronics, and
experience with car stereo installation
are needed to properly install these
amplifiers. If you feel you do not have
the necessary knowledge and skills, we
strongly recommend that the instal-
lation be done by your authorized
JBL dealer. If the GTS100 is installed
by a qualified JBL dealer, we will
make installation as easy as possible, it
is a sophisticated product that requires
proper installation to realize its full per-
formance potential. Skill with tools, an
understanding of basic electronics, and
experience with car stereo installation
are needed to properly install these
amplifiers. If you feel you do not have
the necessary knowledge and skills, we
strongly recommend that the instal-
lation be done by your authorized
JBL dealer. If the GTS100 is installed
by a qualified JBL dealer, we will
double
the length of your warranty to two years
from date of purchase.
from date of purchase.
If you choose to install the GTS100
yourself read
yourself read
all of the information in
this manual
before you start the installa-
tion. Pay particular attention to the
safety precautions and notes.
safety precautions and notes.
It will save potential problems later if
you take a few minutes to plan the com-
plete installation before you start. The
routing of wires, the power supply con-
nection points, and the mechanical
installation of the unit should be com-
pletely thought out before you begin.
Work carefully and check each step as
it is performed. Before operating the
amplifier, recheck the entire installation
to be sure that each connection is cor-
rect, properly insulated and secure.
you take a few minutes to plan the com-
plete installation before you start. The
routing of wires, the power supply con-
nection points, and the mechanical
installation of the unit should be com-
pletely thought out before you begin.
Work carefully and check each step as
it is performed. Before operating the
amplifier, recheck the entire installation
to be sure that each connection is cor-
rect, properly insulated and secure.
JBL 1394 Manual 7/17/98 11:49 AM Page 4
