JBL GTS300, GTS600 manual Input Gain Adjustment, Adjusting the Gain

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6. Input Gain Adjustment

Before operating the GTS300 or GTS600, recheck all wiring connections to make sure they are correct and secure. Be sure that a fuse (40 amp for GTS300 and two 40 amp fuses for the GTS600, not included) is installed in the +12V line near the battery. Reconnect the negative ground (-) terminal of the battery. Make sure that the input mode selector, speaker output crossover frequency modules, and preamp output crossover switch are properly set.

Adjusting the Gain

The setting of the gain control on the GTS300 and GTS600 is important to ensure proper performance, low noise levels, and maximum reliability in the system.

Using a high signal level from the source and a low gain setting on the amplifier will help keep backgroune noise levels in the system low.

To adjust a system using a single amplifier, start with the amplifier gain controls fully counterclockwise.

Set all Bass/Treble or equalizer controls to their centered or bypassed positions. While listening carefully to the system output, adjust the volume control of the radio/tape deck to the point where you first begin to hear audible distortion. Reduce the level just to the point where the distortion goes away.

If this setting does not provide adequate volume levels, gradually increase (turn clockwise) the gain control on the GTS300 ot GTS600

until the system plays as loud as necessary ot when the first signs of distortion are heard.

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Contents Introduction Installation and UseAbout Installation Before disconnecting the battery Controls and Connectors40A System Design Using the GTS300 or GTS600 WiringSignal Sources Speaker RequirementsCassette/CD Tuner CD Player Or Changer Crossover Frequency Adjustments Internal AdjustmentsSpeaker-Level Input Impedance Adjustments Crossover 2,500,000 Frequency = Crossover Custom Chip ConstructionResistor 2,500,000 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.