Thanks to their high efficiency, JBL loudspeakers will produce reasonable volume levels in a room of moderate size with very little amplifier power. However, using a small amplifier to obtain the desired volume listening levels may lead to overdriving the unit. This will generate high distortion levels and may cause damage to your loudspeaker. For the best perfor- mance, an amplifier should be selected with an output rating that is greater than the maximum power that will be used. This margin of reserve power will ensure that the amplifier will not attempt to deliver more power than its design allows. However, the power amplifier’s power rating per channel must not exceed the maximum recommended amplifier power for that specific loudspeaker model. Please see the specifications section for details. Following these two guidelines will provide virtually distortion-free sound reproduction and long loudspeaker life.

CONNECTIONS

To connect your JBL loudspeaker sys- tems to a receiver or an amplifier, use two-conductor insulated wire. Your JBL dealer can recommend suitable cables, or you can buy wire at most hardware stores. We recommend #16 AWG wire as a minimum size. If your speakers are more than 30 feet (10 m) from your receiver or amplifier, use larger diameter wire. Connections are made at the terminals located on the back of the loudspeaker system. The terminals accept bare wire or dual banana plugs, either of which will provide easy, secure connections.

Preparing the hookup wire

1. First determine the distance between the most distant speaker.

2. Now make the hookup wires for both speakers this length, even if one loudspeaker is much closer to your amplifier than the other. This will help maintain proper signal balance.

3. Strip off 3/8" of insulation from both ends of each conductor.

4. Twist each set of thin wires into a tightly-bunched spiral.

5. At this point you need to identify a visual difference between the two conductors of each molded pair of speaker wire. Differentiating marks can be a different color wire (copper or “silver”); a strand of yarn in one conductor; thin, raised ribs on one part of the outer insulation; or a printed “+” marking on one of the insulators. It does not make a difference which of the two conductors of wire go to (+) and (–) on the speakers and amplifier, as long as both speakers are connected identically. Push down on the button below the terminal and insert the wire, or the banana plug, through the hole (see Fig. 2).

Left

Right

Speaker

Speaker

Red Blk.

Red Blk.

(+) (–)

(+) (–)

Amplifier/

Receiver

+ L + R

Fig. 2

 

For each channel, the red terminal on the loudspeaker should be connected to the red or (+) loudspeaker connection terminal on the receiver or amplifier, and the black to the black or

(–). Connecting the loudspeakers in this manner ensures that they will be in phase; that is, work together rather than in opposition. Connecting the loudspeakers out of phase will not damage them, but will result in less bass and poor imaging.

2

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JBL G Series owner manual Connections, Preparing the hookup wire
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G Series specifications

The JBL G Series is a remarkable line of loudspeakers that brings together advanced audio engineering and stunning design. Primarily aimed at professional audio applications, this series is known for its clarity and robust performance across various sound environments, including live performances, events, and indoor venues.

One of the standout features of the JBL G Series is its high-efficiency drivers. Engineered to produce exceptional sound output while minimizing power consumption, these drivers ensure that users can enjoy high-quality audio without the need for excessive amplification. The series typically includes both woofers and tweeters designed with JBL’s signature technology to deliver balanced sound across the frequency spectrum.

A defining characteristic of the G Series is its advanced waveguide technology. This innovation allows for better control of the sound dispersion pattern, which means that listeners positioned throughout an area can experience consistent sound quality. The carefully designed waveguide enhances intelligibility and ensures that vocals and instruments are clear, making it an ideal choice for both music and speech applications.

The JBL G Series also emphasizes rugged construction. Built to withstand the rigors of touring and repeated use, these speakers feature durable materials that protect against impacts and environmental hazards. The cabinets often incorporate premium finishes that not only enhance their aesthetic appeal but also contribute to their robustness.

Another technology that sets the G Series apart is its sophisticated crossover networks. These networks are crucial for managing how audio signals are distributed among the different drivers. JBL engineers meticulously design these crossovers to ensure seamless integration between components, resulting in a cohesive and dynamic sound reproduction.

Connectivity options in the G Series are also user-friendly, offering a range of inputs and outputs that cater to various setups. Whether you're connecting via XLR, TRS or other formats, the versatility in connectivity ensures compatibility with a wide range of audio equipment.

In summary, the JBL G Series stands out for its efficient performance, innovative sound dispersion technologies, durable build quality, and user-friendly connectivity options. These characteristics make it a preferred choice for professionals who demand excellence in live sound environments and a premium listening experience. As part of JBL's legacy of excellence, the G Series is poised to meet and exceed the expectations of audio professionals and enthusiasts alike.
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