User manual JBL L228C

[. . . ] Center rear channel is for a 6-channel system. NOTE: Figures 1, 2 and 3 show recommended speaker locations. You may also follow these general placement suggestions when installing the speakers in the ceiling. 2 PLACEMENT STEREO Before deciding where to place your speakers, survey your room and think about placement, keeping the following points in mind, and using Figure 1, on previous page, as a guide: · For best results, place the speakers 6'­8' apart. [. . . ] Connect each + terminal on the back of the amplifier or receiver to the respective + (red) terminal on each speaker. Connect the ­ (black) terminals in the same way. Pencil Phillips #2 screwdriver (Do not use a powered screwdriver of any kind) Measuring tape Utility knife IMPORTANT! Do not reverse polarities (i. e. , + to ­ , or ­ to +) when making connections. Doing so will cause poor imaging and diminished bass response. Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment. Carpenter's level Awl 3 EXISTING CONSTRUCTION L226C, L228C, LS326C, LS328C 1/2" 1/2" 1/2" 1. Remove the plastic paint shield from the speaker frame. 2. NOTE: Use the included template when cutting the drywall. 3. NOTE: Always allow at least a 1/2 inch between a wall stud and the speaker cutout or the locking tabs will not be able to swivel into place. 4. Ensure that the drywall or plywood board or other appropriate wallboard is at least 1/2-inch thick and confirm that the board material is capable of withstanding the weight of the speaker you will be installing. Connect the speaker wires to the speaker. 6. Make sure all four locking tabs are properly positioned against the locking tab stops that are located on the speaker frame (see Figure 5 below). After confirming this, carefully place the frame assembly in the wall and confirm that there is no more than 1/8-inch play between the frame and the wall cutout. After positioning the speaker in the mounting location, back each screw out one full turn (turn counterclockwise). 7. Screw down each of the four Phillips-head screws, alternating between the four screws. The locking tabs will swivel into place and secure the unit to the rear surface of the wall panel. Handtighten with a nonpowered, straight-handle regular screwdriver only. Do not use a socket wrench, a powered screwdriver, a drill or any other powered tool. [. . . ] Use a high-quality spray paint, and apply a thin coat of color. Be certain the grille perforations remain free of paint. Filling them with paint will diminish the sound quality. [. . . ]