User manual JBL L56

[. . . ] Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. [. . . ] In 6. 1-channel applications, two of the surround speakers should be placed in the side positions, and a single surround back speaker should be placed on the wall behind the listening position. In 7. 1-channel applications, place two of the surround speakers in the side positions, and place the two surround back speakers on the rear wall. In Dolby* Digital and DTS® systems, it is best to aim all of the speakers (except the subwoofer) toward the listening position at about earlevel height. In systems where only analog surround processing (such as Dolby Pro Logic*) is available, it may be preferable to aim the speakers straight out from the wall to obtain a more diffuse sound. The low-frequency material reproduced by the subwoofer is mostly omnidirectional, and this speaker may be placed in a convenient location in the room. However, bass reproduction will be maximized when the subwoofer is placed in a corner along the same wall as the front speakers. Experiment with subwoofer placement by temporarily placing the subwoofer in the listening position and moving around the room until the bass reproduction is best. Place the subwoofer in that location. MOUNTING OPTIONS SATELLITES AND SURROUNDS On shelves. On the wall. Wall brackets are included. On optional stands. ATTACHING THE SHELF STAND TO THE SPEAKER Prepare the speaker wire as described on page 7. Thread the two conductors through the two holes in the stand bracket. Make sure to preserve the proper polarity (+ and ­ connections) by threading the positive conductor through the hole on + -- the left, and the negative conductor through the hole on the right looking at the front of the stand. Step 1: Unscrew and remove the large Molded Nut TM. If necessary, use the supplied 6 Metal Bar as a lever by inserting it into one of the holes in the outer edge of the Molded Nut TM. Step 2: Firmly grasp the Ball and Shaft £ and pull it straight out of the Attachment Plate ¢. Avoid leaning it to the side for leverage, as this may break off a tab. Step 3: Slide the Molded Nut TM onto the Ball and Shaft £ with the threaded opening facing the ball. Thread the Metal Nut ¡ all the way onto the Ball and Shaft £, with the star washer side away from the ball. Refer to the exploded drawing for the proper orientation of parts. Step 4: Screw the Ball and Shaft £ into the Threaded Insert § on the back of the Satellite Speaker ¶ until it is fully seated in the Threaded Insert §, but do not tighten, as you might dislodge the Threaded Insert §. Such damage would not be covered under the warranty. Step 5: Tighten the Metal Nut ¡ with the star washer side between the Metal Nut ¡ and the back of the Satellite Speaker ¶, using large needle-nose pliers, until it is firmly seated against the back of the Speaker ¶ and has locked the Ball and Shaft £ and the Satellite Speaker ¶ together. Note that once the Metal Nut ¡ is fully tightened, it may embed some marks on the back of the Satellite Speaker ¶. [. . . ] · Check all wires and connections between receiver/ amplifier and speakers. Make sure none of the speaker wires are frayed, cut or punctured, or touching each other. · In Dolby Digital or DTS modes, make sure that the receiver/processor is configured so that the speaker in question is enabled. · Turn off all electronics and switch the speaker in question with one of the other speakers that is working correctly. [. . . ]