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.
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 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. Any connection in an audio system should not be considered �good forever�. All connections should be inspected and cleaned or remade periodically. Frequency of maintenance depends on the materials involved in the connection, atmospheric conditions and other factors. Consult your dealer for specific recommendations. It is essential that both loudspeakers in a stereo system have the same polarity with respect to the input signal (are in �phase�). JBL Ti speakers are designed to produce a positive pulse when a positive signal is applied to the red input terminal. If the driver cones of the two loudspeakers do not move in the same direction for a given voltage at the input terminals, there will be a lack of stereo definition and a loss of deep bass. We recommend experimenting with the polarity of the speakers, since recordings, program sources or power amplifiers can invert the polarity of the signal. The �correct� connection is the one that yields the best audible results. Be sure to reverse both left and right connections to keep the systems in polarity.
CONNECTIONS
IMPORTANT: When connecting or disconnecting loudspeakers from an amplifier, the amplifier must be turned off. Making connections while the amplifier is operating could seriously damage the loudspeaker system and void the warranty. The amplifier must also be turned off before connecting or disconnecting cables at the amplifier or pre-amplifier inputs. 1 mm2 (18 AWG) insulated wire is the minimum size recommended for loudspeaker connections up to 5 meters (16 ft). Beyond this distance, heavier gauge wire is recommended: 1.5 mm2 (16 AWG) up to 10 meter (30 ft) and 2 mm2 (14 AWG) up to 20 meters (60 ft). 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. Careful selection of cable and interconnect can add or subtract marked shadings in tonal character. Likewise, different cables can have quite a dramatic impact on the dynamic contrasts experienced by listeners. The same care that was given to the internal system wiring in the JBL TI speakers should be afforded to the selection and application of the cable that will connect the various components in your system. Your JBL Ti Series dealer has the experience and knowledge to recommend suitable interconnects and speaker wire to best complement your system. The length of the speaker wire will depend on the location of the loudspeakers and the amplifier. Since the final positioning of the loudspeaker will be determined by careful listening, you may want to arrange a temporary wiring layout that will allow the moving of the loudspeaker to experiment with placement. When the best loudspeaker position is determined, permanent connections may be made using the shortest cable runs possible. Both left and right speaker wires should be the same length. 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. These terminals permit a variety of connection methods. 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
MULTI-WIRING
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. The advantages are that wire effects (resistance, inductance, etc.) are reduced, and intermodulation of low and high frequencies in the cable is avoided. Specialized wires for low, middle and high frequencies may yield excellent results in some systems. In either case, the cable for the low frequencies should be as short as possible, and the left and right cable for each section must be the
