User manual JBL SUB 10

[. . . ] We build JBL speakers with careful attention to detail, using only the highest quality materials. They will provide many years of excellent performance. We recommend that you take a few minutes to read this owner's manual before you begin, and that you follow instructions carefully. [. . . ] 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. It doesn't matter which of the two strands of wire go to (+) and (­) on the receiver/TV/source + 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 Figure 2: Speaker- Level Input Connection amplifier and G Sub10 subwoofer, just be sure to connect both left and right hookup wires identically. Push down on the button next to the terminal hole and insert the wire through the hole. For each channel, connect the red terminal on the receiver/TV/source amplifier to the red or (+) "Speaker Level Input" connection terminal on the G Sub10 subwoofer, and the black to the black or (­). Connecting the subwoofer in this manner ensures 4 that both channels will be in phase; that is, working together, not in opposition. CAUTION: Never attach inputs to both line-level and speaker-level inputs of the same channel at the same time. OUTPUTS Your subwoofer has a speaker output terminal block to enable the signal to G SERIES LOUDSPEAKERS be sent to your main speakers or satellites. Your G Sub10 subwoofer can use the signal from your receiver/TV/source amplifier to produce the low bass while passing the unaltered signal source to the external speakers. Speaker Level Output (to external speakers) ­ Hook up the external speakers using two-conductor insulated wire using the same procedure as described in "Speaker Level Input" section. The red (+) terminal of the subwoofer should be connected to the red (+) terminal of the external speaker, and the black (­) to black. Connecting the external speakers in this manner ensures that they will be in phase; that is, work together rather than in opposition. Connecting the speakers out of phase will not damage them, but will result in less bass and poor imaging (see Figure. NOTE: There is no significant change in impedance loading to your receiver/TV/source amplifier when hooking up through the G Sub10 subwoofer. It allows a seamless transition from subwoofer to satellite speakers. [. . . ] You should repeat this procedure if you move your subwoofer to another part of the room. any cleaners or solvents on the speaker drivers themselves. TROUBLESHOOTING Your subwoofer can only be repaired by an authorized JBL repair station. Do not remove the amplifier from the cabinet. There are no user-serviceable parts inside. [. . . ]