User manual JBL L56

[. . . ] Do not defeat the safety purpose of the polarized or grounding-type plug. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the apparatus. [. . . ] 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. 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. Push down on the red speaker terminal and insert the bare end of the positive wire into the hole under the red cap. Release the cap, and tug gently on the wire to make sure that the connection is snug. 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 §. 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 ¶. Step 6: Mount the Attachment Plate ¢ into a wood stud on the wall, using four #10 pan-head wood screws at least one inch long (not supplied) ·. With the advent of multichannel surround sound systems, connecting all of the speakers in your system with the correct polarity remains equally important in order to preserve the proper ambience and directionality of the program material. To connect the supplied speaker wires to the satellite and center speaker terminals, press the red or black plastic cap for the desired terminal, insert the bare end of the wire into the hole below the cap and release the cap. To use the binding-post speaker terminals on the subwoofer, unscrew the colored collar until the passthrough hole in the center post is visible under the collar. Insert the bare end of the wire through this hole; then screw the collar down until the connection is tight. The hole in the center of each collar is intended for use with banana-type connectors. To comply with European CE certification, these holes are blocked with plastic inserts at the point of manufacture. To use banana-type connectors requires the removal of the inserts. Separate and strip the ends of the speaker wire as shown. [. . . ] · 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. [. . . ]