Page 2 - Model Number
Table Of Contents Introduction ..................................................................................................3 Features .......................................................................................................4 About Installation .......................................
Page 3 - Introduction
Introduction Thanks for purchasing your new GT series automotive amplifier. The GT series amplifier you have chosenincludes many unique features toenhance its performance and utility.The power amplifier circuitry is a fully discrete design notable for low distortion and unusually clean and clearrepr...
Page 5 - Quick Start
5 5. Connect the outputs from the signal source to the appropriate inputs ofthe amplifier according to the WiringDiagram (page 13) with either highquality low-level signal cables withRCA plugs, with the suppliedSpeaker-level input connector, orboth. 6. Connect the speakers to the ampli- fier accordi...
Page 7 - Typical Applications; Application 1; Stereo Full-Range or Subwoofer Operation
7 controls (Volume, Balance, Bass,Treble) may be connected to the pre-amp-level inputs at the same time as apowered radio/tape unit is connected tothe speaker-level inputs. This providesa higher performance alternative to anFM Modulator connection when youwish to add CD capability to a factoryinstal...
Page 8 - Application 2; Bridge-Mode Operation; Application 3; L R; Application 4
8 L– L+ – + L– R+ – + R– R+ – + R– R+ – + L– R+ – + L– L+ – + L R L R R L– R+ – + GTS 100 GTS 100 4-Ohm Full-Range Speaker or Subwoofer 4-Ohm Full-Range Speaker or Subwoofer Application 2 Bridge-Mode Operation Single Amplifier:Subwoofer-Operation (Mono) Main speakers are driven by head unit or addit...
Page 10 - Controls and Connectors
• The GTS100 must be mounted in a place where air can circulate aroundthe fins on the chassis. Good air circulation around the amplifier will make it operate at lower tempera-tures and reduce the chance of thethermal protection circuits being trig-gered. The installation positions thatprovide the mo...
Page 13 - Typical System Configuration
13 Cassette/CD Tuner (Head Unit) CD Player or Changer CD Input Cassette/CD Preamp Output Antenna Input PowerAntenna Power Antenna Relay Blue w/White Stripe - Remote On/Off Yellow Main +12V Black - Power Ground Chassis Ground Vehicle Battery – + Ignition Switch Antenna Motor Ground Power Supply Blue ...
Page 14 - Power Supply Connections
Power Supply Connections The power input and remote turn-onwires are connected to the GTS100 viathe power connector on the end of theamplifier. Use the included wire harnessfor connections. In some cases, suchas a custom competition installation,you may wish to make your own custompower harness. The...
Page 15 - Audio Input Connections
wire for all grounding, even signalprocessors and head units, can alsohelp to minimize possible noise pickup. Remote Turn-On Wire (Blue withWhite Stripe) Because the JBL GTS100 includesCommon Sense 2-way turn-on circuitry, you have two options forremotely activating the amplifier. Whenusing the spea...
Page 17 - Speaker Level Input Color Codes; White; Speaker Connections
Speaker Level Input Color Codes Left (+): White Left (-): White with Black Stripe Right (+): Gray Right (-): Gray with Black Stripe Using Both the Speaker Level Inputand Line Level Input TogetherIn some systems it may be desirable touse both the speaker level inputs andline level inputs simultaneous...
Page 18 - Speaker Output Color Codes
same time. This is sometimes used forcenter-channel applications or for inex-pensive subwoofer addition, essentiallycreating a 3-channel system. However,unlike a true bi-amplified subwooferconnection, this system configurationdoes not provide for control of sub-woofer-satellite balance, it requires ...
Page 20 - Operation; high as possible, with
carefully to the system output, adjustthe volume control of the radio/tapedeck to the point where you first beginto hear audible distortion. Reduce thelevel just to the point where the distor-tion goes away. This is the maximumundistorted output level of your headunit and signal processors, and shou...
Page 21 - Solving Noise Problems
and 16 volts. Check that the powerwires are not reversed. If the GTS100 is operated at very highpower levels in a high ambient tempera-ture situation, the unit may not be ableto radiate all the heat generated bysuch operation. If the temperature ofthe amplifier reaches a level that couldcause damage...
Page 24 - Maintenance
Additional SystemConfigurations for Add-On or Upgrade The features and capabilities of theGTS100 provide tremendous systemdesign flexibility. The diagrams on thefollowing pages illustrate some of thesystem possibilities. They are in orderof increasing complexity, showing theway a system may be upgra...
Page 25 - System 1; Add Power to Main Speakers; System 2A; System 2B
25 R– R+ – + L– L+ – + GTS 100 L– L+ – + R– R+ – + GTS100 Front Outputs Rear Outputs Front Full-Range Speakers Rear Full-Range Speakers System 1 Add Power to Main Speakers Add a GTS100 to the main(usually front) outputs of an existing head unit.Secondary speakers(usually rear-fill) connectto the hea...
Page 26 - System 3; System 4; Add Power to the Rear; System 5
26 L– L+ – + R– R+ – + GTS 100 GTS 100 L– L+ – + R– R+ – + + – Front Outputs Rear Outputs Front Satellite Speakers Preamp output to preamp input Rear Full-Range Speakers System 3 Add a Second GTS100 1 or 2 Subwoofers GTS100 GTS100 L– L+ – + R– R+ – + GTS 100 GTS 100 GTS 100 L– L+ – + R– R+ – + + – F...
Page 27 - In Case of Difficulty; • Head unit not on turn the head unit on.
27 In Case of Difficulty Power-on light does not come on. • Head unit not on; turn the head unit on. • Ground wire is disconnected or defective; check for continuity with an ohmmeter between the GTS100’s ground terminal and a known chassis ground point. • Battery wire is disconnected or defective; c...
Page 29 - Specifications
29 Specifications Continuous Power Output 35 watts x 2 (20Hz – 20kHz, (4 Ohms, 0.05% THD) 14.4V Battery Voltage) 50 watts x 2(2 Ohms, 0.08% THD)100 Watts x 1(4 Ohms, 0.08% THD) Signal to Noise Ratio 100dBA Frequency Response 10Hz – 50kHz (+0, – 1dB)20Hz – 20kHz (+0, – 0.1dB) Damping Factor >200 S...
