User manual JBL TI1KBE

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JBL TI1KBE : Download the complete user guide (65 Ko)

Manual abstract: user guide JBL TI1KBE

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

[. . . ] A good guideline is to start by concentrating on the tonal balance of the sound, aiming for the most neutral reproduction. When the desired tonal character is achieved, efforts should be directed towards the recreation of the sound stage ­ the imaging. the tonal balance is roughly determined by the distances to the walls of the room in combination witht the specific acoustic properties of the room. Placement close to walls gives a reinforcement of lower frequencies compared to placement well away from room boundaries. [. . . ] On the other hand solid walls, floors and ceilings like brick and concrete may cause problems by increasing the level of reverberation time at low frequencies giving a boomy, fat sound. NOTE: New loudspeakers require a certain amount of "exercise" before they perform their best. A steady level of performance is achieved after 8-12 hours of operation, depending on the nature of the music and the level. Should you want to speed up this process you can use inter-station FM noise as a signal during periods, where you would normally not be listening to the speaker. Alternatively a CD player on "Repeat" would be an appropriate signal source. 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 bananatype 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. Spade lugs will together with the custom made binding posts made for the JBL TI speakers, make the best possible connection between the speaker wire and the loudspeaker system, minimizing any contact resistance that might degrade the sound ever so slightly. In some systems, the amplifier may be located near the loudspeaker system and may be connected using a short length of speaker wire. Although a relatively long cable between the preamplifier and main amplifier is required by such a hook-up, the benefit of a short amplifier-to-loudspeaker connection will often outweigh the drawbacks. Connections to the loudspeaker system are made at the terminals located at the bottom of the enclosure. The most straightforward connection is made by directly connecting clean bare wire. This way the 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 JBL Ti loudspeakers may also be connected to the power amplifier using several lengths of wire. the multi-wire connection method offers a number of options and advantages. Each section of the Ti-loudspeaker system's internal frequency dividing network is electrically separated and equipped with its own pair of input terminals This way each individual loudspeaker drive unit (and its associated network) can be connected independently to the power amplifier. The loudspeaker system is shipped from the factory with all the network sections interconnected by strapping bars, so that the loudspeaker can be hooked up to the amplifier by a single run of cables. Be removing the bars, connections can be made to the individual network sections using two or more pair of wires (four or more conductors) as shown in figure 1. The wires used may be of the same type for both low, middle or high frequency sections. [. . . ] 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. CAUTION: Never connect two amplifiers to the same loudspeaker without first removing the strapping bars. Operating two amplifier channels with the bars in place can seriously damage the amplifiers and void the warranty. [. . . ]

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