JBL GTS300, GTS600 manual Before disconnecting the battery, Controls and Connectors

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before disconnecting the battery!

2.Run a minimum AWG #8 power cable complete with a 40 amp fuse (not included) for the GTS300 or an AWG #6 or AWG #4 cable with an 80 amp fuse for the GTS600 directly from the positive + 12V battery terminal to the disired amplifier location. Keep the fuse to within 6” of the battery terminal, and before the wire runs through any metal

partition.

Note: All wiring connections should be made either by soldering with heatshrink tubing insulation or with high quality crimp type insulated connectors installed with a professional type, articulated crimping tool. Soldering crimptype terminals is recommended for additional security. Never use wire-nuts, insulation-displacement connectors (i.e. ScotchLok type), or “twist and tape” connections. Do not use electrical tape; it will loosen with age and extreme temperatures.

3.Mount amplifier in the desired location using four screws.

4.Connect power wiring as shown i the Wiring Diagram.

5.Connect the outputs from the head unit to the appropriate inputs of the amplifier according to the Wiring Diagram with either high quality low-level signal cables with RCA plugs, with the supplied speaker-level input connector, or both.

6.Connect the speakers to the amplifier according to the wiring diagram.

7.Turn the input gain adjustment to the 1/4 position.

8.Set the crossover switches as desired.

9.Set the input mode switch to stereo, left + right or right input only operation.

10.Set the bass boost switch to the desired position.

11.Reconnect the negative battery cable.

12.Turn on the signal source at a low volume level and check for the correct output from each speaker.

13.Adjust the amplifier gain control using the procedure described in the “Adjusting the Gain” section.

2.2 Controls and Connectors

1.Preamp-Level Input Connector – Use these connectores for line (preamp) level input to the amplifier.

2.Preamp-Level Output Connector

– Use these outputs to send the signal to additional amplifiers.

3.Speaker-Level Input Connector – Use this connector for speaker level input signals. A wire harness is supplied for use with this connector. This input also includes JBL’s Common Sense input circuitry which turns the amplifier on as soon as the high powered head unit connected to this input is turned on.

4.Speaker Output Connector – Connect speaker wiring to this connector. See “Wiring” directions for more information.

5., 6., 7., 8., Power Connector – Connection for power wires #A. See “Wiring” directions for information on proper connections.

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Contents Introduction Installation and UseAbout Installation Before disconnecting the battery Controls and Connectors40A Signal Sources System Design Using the GTS300 or GTS600Wiring 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.
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