User manual JBL HT SYSTEM

[. . . ] JBL uses audiophile-grade polypropylene capacitors and low-loss/lowdistortion inductors to prevent phase or amplitude distortions. Acoustically Optimized Cabinet and Grille Design: provide smooth uncolored sound and eliminate diffraction and unwanted resonances. Magnetic Shielding: allows you to place your front channel and subwoofer speakers near video monitors without creating interference or distorting the picture. 3 PLACEMENT Placing your speaker components properly is vital to achieving the correct sonic performance. Please read the following sections carefully for proper placement. [. . . ] CONNECTIONS To connect the loudspeaker systems to the receiver or amplifier, use two-conductor insulated wire. Your JBL dealer can recommend suitable cables, or you can buy wire at most hardware stores. High-quality connectors and cable offer consistent performance that won't deteriorate over time. 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. Make connections 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. 5 NOTE: Do not attempt to install any type of mounting brackets onto your speakers. Drilling holes in the Preparing the hookup wire 1. First determine the distance between your amplifier and the most distant speaker in each group (fronts, surrounds, subwoofers). Now make the hookup wires for all speakers in each group (fronts, surrounds, subwoofers) this length, even if one HT Series loudspeaker is much closer to your amplifier than the other. This will help maintain proper signal balance. Strip off 3/8" of insulation from both ends of each conductor. Twist each set of thin wires into a tightly-bunched spiral. Now find 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 doesn't matter which of the two strands of wire go to (+) and (-) on the speakers and amplifier, as long as all speakers are connected identically. Unscrew the binding post, insert the wire into the hole, then re-tighten the binding post. If using banana plug type wire connectors just insert them directly into the posts making sure the lug on the negative (-) side of the banana plug is placed into the black binding post. For each channel, connect the red terminal on the loudspeaker to the red or (+) loudspeaker connection 6 terminal on the amplifier and the black to the black or (-). Connecting the loudspeakers this way ensures that they will be in phase; that is, work together, not in opposition. Connecting the loudspeakers out of phase will not damage them, but will result in less bass and poor imaging. [. . . ] DO NOT remove the strap connecting the right-hand set of binding posts. Your single subwoofer connection is complete. NOTE: THX®-LICENSE IS DEPENDENT ON THE USE OF TWO SUBWOOFERS. USING JUST ONE SUBWOOFER WITH YOUR THREE FRONTS AND TWO SURROUNDS MAY ACHIEVE SUFFICENT SOUND PRESSURE LEVELS IN SMALLER ROOMS, BUT IS NOT THX® CERTIFIED. CONSULT YOUR JBL DEALER. TROUBLESHOOTING The vast majority of new speaker "malfunctions" end up being traced to connections or switch settings. [. . . ]