User manual JBL GT5-A604

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JBL GT5-A604 : Download the complete user guide (343 Ko)

Manual abstract: user guide JBL GT5-A604

Detailed instructions for use are in the User's Guide.

[. . . ] The amplifier must also be turned off before connecting or disconnecting cables, at the amplifier or pre-amplifier inputs. These recommendation are given as MINIMUM requirements, and generally speaking, the speaker leads should be as short as possible. speaker wire and interconnect cables are important components in an audio system. With all other factors at an appropriate level of quality the speaker cable and the interconnect cable can make significant contributions to the perceived sound quality. [. . . ] A good guideline to proper setup is to start by concentrating on the tonal balance of the sound, aiming for the most neutral reproduction. Is the bass too strong or too weak compared to the midrange and treble?Moving the speakers around in relatively large steps, Connections to the loudspeaker system are made at the terminals located on the back of the enclosure. The most straightforward connection is made by directly connecting clean bare wire. This connection is made by stripping 8-10 mm of insulation off the loudspeaker wire and passing the bare wire through the hole in the binding post. If the wire is too thick to pass through the hole in the terminal in one single bundle, separate the copper wire into three equal bundles, then pass the center bundle through the hole in the terminal. Wrap the remaining bundles around the binding post and twist the center stands. The knob can now be tightened securely, and any excess wire that is not in contact with the binding post surfaces should be trimmed to avoid short circuits. A very convenient way of connection is the use of 4 mm banana connectors, which are then, in turn, connected to the binding posts. Bear in mind, however, that the number of contact points should be kept to a minimum, and at the same time each contact should be as tight as possible. For the same reason, we recommend the use of the highest quality spade connectors, expertly connected to the selected cables. The wires used may be of the same type for both low frequency and high frequency sections. Four identical amplifiers (or two dual channel units) may be used, although specialized low and high frequency amplifiers can offer clear advantages. Your JBL Ti-Series dealer can recommend amplifiers that best suit your needs. In all cases, the left and right amplifiers for each section must be identical. Ensure that the input sensitivity of the two amplifiers is equal or that input level controls are provided to maintain proper low to mid/high balance. If two identical stereo amplifiers are chosen, each amplifier may be located near a loudspeaker and drive low frequency and high frequency sections through short wire runs. Input polarity should be the same for both low and high frequency section. if the polarity is reversed to one section , a discontinuity in the freefield response will be apparent in the crossover region. Feel free to experiment with the polarity of the individual section to find a position that will suit you best. Reverse the polarity to either high or low frequency sections of both loudspeakers if a problem is suspected. Amplifier polarity markings may not ensure correct polarity connections. [. . . ] Your JBL dealer can make recommendations and arrange auditions to aid selection of suitable amplification. Fuses or circuit breakers of any kind should not be used between the amplifier and loudspeakers. All such devices will seriously degrade the sound quality and do not ensure protection from loudspeaker damage. The key to safe operation is adequate amplifier power to avoid distortion at the highest sound levels required. [. . . ]

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