User manual JBL SUB6

[. . . ] We've also provided speaker outputs to let you hook up satellite speakers. Adjustable level and crossover controls let you balance the subwoofer with your main speakers. Poly-fiber Laminate Woofer Provides tight bass and well-defined sound reproduction without harshness, stridency, or listener fatigue. Acoustically Optimized Cabinet Optimized to produce an extended and level bass response in conjunction with the internal amplifier. [. . . ] Speaker Level Input (from amplifier) ­ Use these inputs when connecting to the "Speaker Out" (speaker mains) of the receiver/ TV/source amplifier. Run speaker wires from the speaker output terminals (usually coded red and black) on the rear of the receiver/TV/source amplifier to the red and black input terminals labeled "Speaker Level Input (from amplifier)" on the subwoofer (see Figure 2). Preparing the Hookup Wire Your JBL dealer can recommend suitable cables, or you can buy wire at most hardware or electronic stores. High-quality connectors and cable offer consistent performance that does not deteriorate over time. We recommend #16 AWG two-conductor insulated wire as a minimum size. If your subwoofer is more than 30 feet (10m) from your receiver/TV/source amplifier, use larger diameter, lower gauge wire. G SERIES LOUDSPEAKERS + R ­ ­ L+ Receiver or Amplifier Subwoofer or Line Output R L RCA Phono Cables Speaker Level Input (from amplifier) + R ­ ­ L + Line Input L Level Phase Crossover Freq Reverse Normal R Min Max 50 (Hz) 200 + R ­ ­ L + Speaker Level Output (to external speakers) G Sub10 Subwoofer Figure 1: Line-Level Input Connection 1. First determine the distance between the receiver/TV/source amplifier and your subwoofer. Strip off 3/8" of insulation from both ends of each conductor wire. Twist each set of thin wires into a tightly-bunched spiral. Now find a visual difference 3 between the two conductors of each molded pair of speaker wire. These differences 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. Your G Sub10 subwoofer turns itself off internally. For extended periods of non-use (i. e. , vacations, etc. ), you may wish to actually turn the subwoofer off using the power switch. 5 LEVEL NOTE: When first setting up your subwoofer, set the Level control counterclockwise to "Min" (minimum) before turning power switch ON. Turn power switch to "On, " and use the "Level" knob to add the appropriate amount of bass to your main speaker output. Increase the subwoofer level by turning the level knob clockwise until you find a setting that is pleasing to you. CROSSOVER FREQUENCY Use the "Crossover Freq" knob to adjust the upper end of the subwoofer's frequency response. The crossover control determines the highest frequency your subwoofer will + R ­ ­ L+ Receiver or Amplifier Subwoofer or Line Output R L Speaker Wire Speaker Level Input (from amplifier) + R ­ ­ L + Line Input L Level Phase Crossover Freq Reverse Normal R + R ­ ­ L + Min Max 50 (Hz) 200 Speaker Level Output (to external speakers) G Sub10 Subwoofer Speaker Wire ­ + External Speakers ­ + Figure 3: Speaker-Level Output Connection 6 G SERIES LOUDSPEAKERS PLACEMENT CAUTION: Do not place your subwoofer next to heaters, furnaces, or any other heat sources. Be sure not to pinch or compress the power cord. Since the low frequencies produced by your subwoofer are relatively nondirectional, the placement of your subwoofer is not critical. You may place it under an end table, next to the wall, near the TV, anywhere you would like. Use the PHASE switch to maintain proper acoustic summation with the main speakers. Listen to your G Sub10 subwoofer and main speakers with the switch on "Normal" then listen to the same material with the switch on "Reverse. " Decide which way sounds better and leave the switch in this position. [. . . ] Your stereo sound source may not be turned on or may not be selected on the front panel of the receiver/amplifier. The subwoofer plays at low volumes and/or shuts off as volume is increased, or sound is intermittent 1. Turn level control higher, towards the "Max" position. There may be a short circuit in one of the connections. [. . . ]