JBL GTS300, GTS600 manual Case of Difficulty

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8. In Case of Difficulty

Power-on light does not come on

Power light is on, but no sound is heard from some or all of the speakers

Head unit not on; turn the head unit on.

Ground wire is disconnected or defective; check for continuity with an ohm-meter between the amplifier’s ground terminal and a know chassis ground point.

Battery wire is disconnected or defective; check approximately +12 volts between the amplifier’s battery and ground terminals.

Blow fuse; check amplifier’s located on the endpanel near the power connector. If it is blown replace it with an identical one. If the new fuse blows immediately, then check all the wiring connection. If no fault is found, consult your JBL dealer.

Remote-on wire between the head unit and the amplifier is disconnected or defective; check for +12 volts between amplifier’s remote-on input terminal and the ground input terminal with the head unit on.

Incorrect switch settings; make sure that all switchs (input mode and crossover) are in their correct positions for your system configuration.

Incorrectly connected or shorted speaker wires; check for shorts in wiring.

Defective or disconnected audio cables; check for continuity and replace if necessary.

Incorrect Gain Adjustment; verify that the amplifier gain controls are not turned completely down. If they are, sound output level may be very low and may give the impression that the system) or part of the system) is dead.

Defective head unit or signal processor; check each component for proper wiring and operation.

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Contents Installation and Use About InstallationIntroduction Before disconnecting the battery Controls and Connectors40A System Design Using the GTS300 or GTS600 WiringSignal Sources Speaker RequirementsCassette/CD Tuner CD Player Or Changer Internal Adjustments Speaker-Level Input Impedance AdjustmentsCrossover Frequency Adjustments Custom Chip Construction Resistor 2,500,000Crossover 2,500,000 Frequency = Crossover Input Gain Adjustment Adjusting the GainTypical Applications Application Stereo Full-Range or Subwoofer OperationBi-amplified, System Using Preamp Output CapabilityCase of Difficulty Page Specifications Page Harman International Company

GTS600, GTS300 specifications

JBL has long been a leader in the audio industry, and the introduction of the GTS300 and GTS600 speakers reinforces their commitment to delivering exceptional sound quality. Both models embody the cutting-edge technology that JBL is known for while providing a range of features designed for both casual listeners and serious audiophiles.

The JBL GTS300 offers an impressive audio performance with its powerful drivers and advanced engineering. The speaker features a robust woofer that delivers deep, resonant bass, ensuring that music enthusiasts feel every beat. The innovative design of the driver minimizes distortion, allowing for a clear and well-balanced sound across a wide frequency range. This model is also equipped with a high-frequency transducer that produces shimmering highs, making it perfect for various music genres, from classical to modern pop.

On the other hand, the JBL GTS600 takes sound quality to the next level. This model is engineered with larger drivers and an enhanced cabinet design, which contributes to its impressive soundstage. The GTS600 is designed with a focus on clarity and detail, ensuring that vocal performances and instrumentals are represented with precision. The speaker incorporates advanced sound dispersion technology, allowing for a wider listening area, which makes it ideal for larger spaces or gatherings.

Both the GTS300 and GTS600 feature JBL’s proprietary technology that enhances the listening experience. One of these key technologies is the implementation of digital signal processing (DSP), which optimizes sound output according to the acoustics of the environment. This offers listeners a tailored audio experience, irrespective of the room setup. Furthermore, the speakers are compatible with various audio inputs, ensuring easy connectivity to a range of devices, from smartphones to home theater systems.

In terms of aesthetics, the GTS series boasts a sleek and modern design that will complement any setting. The durable build and high-quality finish ensure that both models not only look good but are also built to last.

In conclusion, the JBL GTS300 and GTS600 speakers represent the pinnacle of audio innovation, delivering exceptional sound quality, a variety of modern features, and robust design. Whether for personal enjoyment or professional use, these speakers are a valuable addition to any audio setup, capturing the essence of accurate sound reproduction that JBL is renowned for.