User manual JBL S1A

[. . . ] Unplug this apparatus during lightning storms or when unused for long periods of time. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. Do not use attachments not recommended by the product manufacturer, as they may cause hazards. [. . . ] We're confident that the JBL system you have chosen will provide every note of enjoyment that you expected ­ and that when you think about purchasing additional audio equipment for your home, car or office, you will once again choose JBL. Please take a moment to register your product on our Web site at www. jbl. com. This enables us to keep you posted on our latest advancements, and helps us to better understand our customers and build products that meet their needs and expectations. JBL Consumer Products SPEAKER PLACEMENT · As a general rule, bass response increases as a subwoofer is placed closer to a wall. Therefore, bass output is maximized when the subwoofer is placed in a corner. · It is also recommended that the subwoofer be positioned along the same wall as the front loudspeakers. Low-frequency sounds are normally omnidirectional, meaning the listener can't tell where they are generated from. However, frequencies between 75Hz and 150Hz can be localized, especially at higher volume levels. Positioning your subwoofer as recommended will provide the most natural soundstage and imaging from your loudspeaker system. Remember that these are just guidelines. Since every listening room is different, JBL strongly recommends experimenting with the positioning of your subwoofer to obtain the most pleasing results in your room. Connect the free end of the (+) lead for the left input on the subwoofer to the left binding-post terminal. Repeat this process for the (­) connections for the left front Left Front speaker and left input on the subwoofer, and then for the (+) and (­) connections for the right front speaker and right high-level inputs on the subwoofer. Connect your receiver or amplifier's center and surround speaker terminals to the corresponding terminals on the back of your center and surround speakers. + ­ Center Right Front + ­ + ­ Subwoofer L HIGH LEVEL IN + Left Front ­ Receiver Center R Right Front + ­ Twist Here + ­ Twist Here + ­ Left Surround Right Surround + ­ + ­ Left Surround Right Surround + ­ + ­ To front left (+) terminal on receiver/amplifier 4 Analog Receiver/Processor ­ Line-Level Connections Use this installation method with an analog receiver/ processor that does not have digital processing or bass management, and that is equipped with a full-range subwoofer output or a volumecontrolled preamp (line-) level output: Use RCA-type interconnect cables to connect the linelevel subwoofer outputs on your receiver or amplifier to the line-level inputs on the subwoofer. IMPORTANT: Make sure that the LFE toggle switch on the subwoofer is in the "Normal" position. Do not use the "LFE" position with Dolby* Pro Logic*-only processors. Note: If your receiver or amplifier has only one subwoofer output jack, then you may connect the subwoofer output on your receiver/preamplifier to either the left or right line-level input on the subwoofer. It makes no difference which jack you choose. Connect each speaker to the corresponding speaker terminals on your receiver or amplifier. Make sure your receiver or processor is configured so that the subwoofer is "On. " RECEIVER Subwoofer Out LEVEL Min Max LFE NORMAL PHASE 0º 180º CROSSOVER FREQUENCY 50Hz 150Hz L R LINE LEVEL IN L R Note for advanced users: If your receiver/ processor has a built-in lowpass crossover filter for the subwoofer output, then the LFE switch should be set to the "LFE" position to bypass the subwoofer's internal crossover. For LFE use L or R L HIGH LEVEL IN +­ R Digital Receiver/Processor ­ LFE Connection Use this installation method for Dolby Digital, DTS® or other digital surround processors that have bass-management programming, or for analog receivers/processors that have a filtered subwoofer output: IMPORTANT: Make sure that the LFE toggle switch on the subwoofer is in the "LFE" position. Use the line-level input jacks for the LowFrequency Effects channel. Connect these jacks to the LFE output or subwoofer output on your receiver or amplifier. [. . . ] · Flip the Phase Control switch to the opposite position. · If you are using a Dolby Digital/DTS receiver or processor, make sure that the subwoofer adjustments on the receiver/processor are set up correctly. · Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass. If you used the line-level inputs and there is no sound from the subwoofer: · Check that the receiver/ amplifier is on and a source is playing. [. . . ]