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- JBL
- Car Amplifier
- GTS100X
- Owner's Manual
JBL GTS100X Owner's Manual
Summary of GTS100X
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G r a n d t o u r i n g s e r i e s 2 /1 c h a n n e l a u t o m o t i v e p o w e r a m p l i f i e r g t s 1 0 0 x o w n e r ’ s m a n u a l g e n u i n e j b l gts100x om 7/16/98 2:56 pm page 1.
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02 introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 about installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 quick start . . . . . . . . . . . . . . . . . ...
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03 thanks for purchasing your new gt series automotive amplifier. The gt series amplifier you have chosen includes many unique features to enhance its perfor- mance and utility. The power amplifier circuitry is a fully dis- crete design notable for low distortion and unusually clean and clear reprod...
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04 • 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 • input mode switching • made in usa about installation although the gts100x was designed to make ...
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05 recommended for expe- rienced professional installers only! 1. Disconnect the negative cable from the battery. Note: if the vehicle’s radio features a code-type security system, make certain you know the code before disconnecting the battery! 2. Mount the amplifier to the desired location using f...
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06 when the gts100x is in bridged mode, the combined impedance of the speaker (or speakers) con- nected to the bridged channel should be at least 4 ohms. As in the example just mentioned, sustained operation of the gts100x in bridged mode with less than 4 ohms will likely cause overheating. If monau...
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07 outputs by connecting them through the speaker-level input connector. Inside the gts100x, the speaker-level and preamp- level inputs are connected through a mixing circuit, which allows them to be used simultane- ously. Therefore, a low-level source, such as a cd player equipped with preamp contr...
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08 typical applications the following diagrams show the most common basic system con- figurations using the gts100x. More elaborate systems are formed by using a combination of these “building blocks.” for additional ideas, refer to the “additional system configura- tions for add-on or upgrade” sect...
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09 l– l+ – + l– r+ – + r– r+ – + r– r+ – + l– r+ – + l– l+ – + preamp or speaker-level input l r 2- or 4-ohm full-range speakers l r front rear 4-ohm subwoofer gts100x a gts100x b application 3 biamplified, three-channel subwoofer/satellite system amp crossover input mode line switch switch switch a...
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10 installation precautions before beginning the installation of the amplifier, read the follow- ing precautions carefully. Failure to heed these warnings could result in personal injury or dam- age to property. • the gts100x should be installed only in vehicles that have 12-volt negative ground ele...
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11 physical installation there are several factors to con- sider when selecting a mounting location for the gts100x. • it must be solidly mounted in a place where it will not be sub- jected to excessive shock and vibration. • under no circumstances should the amplifier be mounted where it will be ex...
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12 controls and connectors 1. Line-level rca inputs – use these connectors for line (pre- amp)-level input to the amplifier. When speaker inputs are used, this connector can be converted for use as a line-level output by setting the “line” switch to “out.” 2. Line selector – this switch sets the lin...
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13 4. Input mode selector – this switch is used to set the input mode for both preamp and speaker-level inputs. Set this switch to “stereo” for normal operation using both left and right inputs. Set this switch to “r” to drive both the left and right channels with only a single input on the right ch...
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14 wiring proper wiring of the gts100x and the associated components is extremely important for proper performance and long-term relia- bility. Using the proper type of wire is very important. If a spe- cific type of wire should be used for a certain application, it will be noted. All wiring connect...
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15 power supply connections the power input and remote turn- on wires are connected to the gts100x via the power connector on the end of the amplifier. Use the included wire harness for con- nections. In some cases, such as a custom competition installation, you may wish to make your own custom powe...
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16 • when multiple amplifiers are installed in the system, it is often best to ground all of the amplifiers and signal processors to the same point to prevent noise pickup from a ground loop. In some unusual installa- tions the noise level will be lower if the amplifier or ampli- fiers are grounded ...
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17 audio input connections line-level input connection proper wiring between the signal source, any other components in the system and the gts100x will help to keep noise levels in the system low. Use high-quality, low-capacitance shielded wire. Keep the wire as short as possi- ble. Do not splice sh...
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18 bridged mode operation – to select bridged mode operation, set the input mode switch in either the “r” only or “l + r” position. In the “r” position, sig- nal from the right channel input is fed to both amplifier channels. In the “l + r” position, the signal from both channels is summed internall...
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19 simultaneous speaker-level and line-level inputs in some systems it may be desir- able to use both the speaker-level inputs and line-level inputs simul- taneously. For instance, if you have a stock head unit in your car, you may connect the speaker-level inputs of the head unit to the gts100x. Yo...
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20 when connecting speaker wires, be sure that no uninsulated wire remains exposed and no loose strands of wire touch either an adjoining wire, terminal or metal surface. Securely crimp or solder all connections and insu- late them with heatshrink tubing. Use high-quality 18 gauge or larger speaker ...
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21 l r line in out nom min max gain input mode stereo crossover off high r l+r low + r - + l - + r - + l - speaker outputs speaker inputs bridged fuse 20a power gnd bat(+) rem (+) (+) (–) (–) (+) (–) c c l subwoofer (low-pass) tweeter/midrange satellites (high-pass) high-pass satellite crossover fre...
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22 bridged-mode connection – connect the loudspeaker positive ( + ) terminal to the right chan- nel positive wire (gray). Connect the loudspeaker negative (–) ter- minal to the left channel nega- tive wire (white with black stripe). The input-mode switch should be set to “r” or “l + r.” simultaneous...
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23 operation before operating the gts100x, recheck all wiring connections to make sure they are correct and secure. Be sure that a 20-amp fuse (not included) is installed in the + 12v line next to the battery. Reconnect the negative ground (–) terminal of the battery. Make sure that the input mode s...
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24 other characteristics turn-on delay – when installed as described in this manual, the gts100x will turn on and off with the head unit or the vehicle’s ignition switch. When the ampli- fier is turned on, there is a time delay of several seconds (longer in cold weather) before the amplifier will pr...
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25 again when it cools off. Repeated activation of the protection cir- cuits indicates that the system is being improperly operated or that the amplifier should be relo- cated to an area that either has a lower ambient temperature or that allows more air circulation around the unit. Fuse replacement...
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26 solving noise problems the power supply system of every vehicle has some electrical “noise” that is generated by the ignition system, the alternator, the accessories, and their wiring. High-performance audio equip- ment is more likely to pick up such noise than conventional equipment because it h...
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27 grounding the source unit and/or amplifier directly to the battery will provide the best results, although, usually, this provides the worst results with most cars. In complex systems involving components from different man- ufacturers, it helps to know the type of power supplies used in each com...
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28 power wires carrying high cur- rents may induce noise in nearby signal wires. Make sure that power wires and signal wires do not run together for long dis- tances. When power and signal leads must cross, they should cross at right angles. If you sus- pect that power line noise is being induced in...
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29 the gts100x does not require any regular maintenance. Periodically checking the main power supply and grounding points and terminal connections is advisable. Be sure the connec- tions are solid and corrosion-free. Loose or corroded connections maintenance away from the radio or radio antenna. 2) ...
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30 the features and capabilities of the gts100x provide tremendous system design flexibility. The dia- grams on thse pages illustrate some of the system possibilities. They are in order of increasing complexity, showing the way a system may be upgraded in logi- cal steps. Although the systems are sh...
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31 l– l+ – + r– r+ – + 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 gts100x 1 or 2 subwoofers gts100x gts100x l– l+ – + r– r+ – + l– l+ – + r– r+ – + + – front outputs rear outputs front satel...
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32 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 gts100x’s ground terminal and a known chassis ground point. • battery wire is disconnected or defective; check for approxi- mate...
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33 bass output from speakers too low. • speaker wired out of phase; check for proper polarity on all speaker wiring ( + amp termi- nal to + speaker terminal and – amp terminal to – speaker terminal). If you want to talk to us about any problems, call jbl customer service at 1-800-336-4jbl between 9a...
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34 continuous power output 35 watts x 2 (4 ohms, 0.05% thd) (10hz – 50khz, 14.4v battery voltage, 80khz filter) 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 l...
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This is an important document. Attach your bill of sale to this page and keep it in a safe place. Your bill of sale is your warranty. The jbl warranty remains in effect for one year from the date of the first consumer purchase unless installed by an authorized jbl dealer. Installation by an authoriz...
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Declaration of conformity we, jbl europe a/s kongevejen 194b dk-3460 birkerød denmark declare in own responsibility, that the product described in this owner’s manual is in compliance with technical standard: en 55 020/6.1988 steen michaelsen jbl europe a/s birkerød. Denmark. 9/96 jbl consumer produ...