User manual JBL 4312C

[. . . ] (1. 5m­1. 8m) ® STUDIO L SERIES L810, 4312C, LC2 TM OWNER'S GUIDE SPEAKER CONNECTIONS Speakers and electronics have corresponding (+) and (­) terminals. It is important to connect both speakers identically: (+) on the speaker to (+) on the amplifier and (­) on the speaker to (­) on the amplifier. Wiring "out of phase" results in thin sound, weak bass and poor imaging. To use the binding-post speaker terminals, unscrew the colored collar until the pass-through hole in the center post is visible. [. . . ] 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. Do not remove these inserts if you are using the product in an area covered by the European CE certification. BI-WIRING The bi-wire connection method requires one amplifier and two sets of speaker wires. By removing the shorting bars, connections may be made to the individual network sections using four conductors, one for each of the four terminals. For single-wire connection, leave the shorting bars in place and connect only a single set of speaker wires (two conductors) to the two upper terminals. High Frequency ­ + MODELS: L810, 4312C RIGHT LEFT ­ + ­ + RIGHT ­+ ­ LEFT + Receiver's Speaker Outputs Receiver's SpeakerOutputs MODEL: LC2 ­ ­ + + ­ + Low Frequency ­ + Amplifier Bi-Wire Connections Receiver's Speaker Outputs SPEAKER SETUP MODELS: L810, 4312C, LC2 The supplied self-adhesive rubber feet may be attached to the bottom corners of your speakers to protect your furniture. Place pads here WALL-MOUNTING Important Safety Notes Model L810 4312C LC2 · Proper selection of mounting hardware and installation of the wall brackets are the responsibility of the customer. Two Number 8 roundhead or panhead screws should be used for each loudspeaker. The screwhead should be between 5/16" (8mm) and 1/4" (6. 3mm) in diameter, and the screw should be at least 2" (50mm) in length. When installing screws in any wall, it is always preferable to screw them into a wall stud. All dimensions include grilles and feet, but not spikes. TROUBLESHOOTING If there is no sound from any of the speakers: · Check that receiver/amplifier is on and that a source is playing. · Review proper operation of your receiver/amplifier. If there is no sound coming from one speaker: · Check the "Balance" control on your receiver/ amplifier. · Check all wires and connections between receiver/ amplifier and speakers. · Make sure no wires are touching other wires or terminals and creating a short circuit. · 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. Turn everything back on, and determine whether the problem has followed the speakers, or has remained in the same channel. If the problem is in the same chanDeclaration of Conformity We, Harman Consumer Group International 2, route de Tours 72500 Chateau du Loir France nel, the source of the problem is most likely with your receiver or amplifier, and you should consult the owner's manual for that product for further information. If the problem has followed the speaker, consult your dealer for further assistance or, if that is not possible, visit www. jbl. com for further information. If the system plays at low volumes but shuts off as volume is increased: If there is no sound from the surround speakers: · Check all wires and connections between receiver/ amplifier and speakers. · If more than one pair of main speakers is being used, check the minimum impedance requirements of your receiver/amplifier. If there is no (or low) bass output: · Make sure the polarities (+ and ­) of the left and right "Speaker Inputs" are connected properly. [. . . ] · If more than one pair of main speakers is being used, check the minimum impedance requirements of your receiver/amplifier. If there is no (or low) bass output: · Make sure the polarities (+ and ­) of the left and right "Speaker Inputs" are connected properly. · Consider adding a powered subwoofer to your system for use with digital ". 1" surround formats. · Check all wires and connections between receiver/ amplifier and speakers. Make sure none of the speaker wires are frayed, cut, punctured or touching each other. · Review proper operation of your receiver/amplifier and its surround sound features. [. . . ]