User manual JBL L150A

[. . . ] The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. 3 THANK YOU FOR CHOOSING JBL For more than 60 years, JBL has been involved in every aspect of music and film recording and reproduction, from live performances to the recordings you play in your home, car or office. 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. [. . . ] The surround speakers should be mounted at a height of between 1. 5m (5 ft. ) and 2m (7 ft. ). Subwoofer Since the installation of a subwoofer can be somewhat more complicated than installing full-range speakers, it is essential that you read this section very carefully prior to connecting the subwoofer to your system. The performance of the subwoofer is directly related to its placement in the listening room and how the subwoofer is aligned with the satellite speakers. Setting the volume of the subwoofer in relation to the left and right speakers is also of critical importance because it's essential that the subwoofer integrate smoothly with the entire system. Setting the subwoofer's volume level too high will result in an overpowering, boomy bass. Setting the volume level too low will negate the benefits of the subwoofer. Here are several additional facts on installation that may prove useful. It is generally believed that low frequencies (below 125Hz) are nondirectional and, therefore, placement of a subwoofer within any listening room is not critical. While in theory it is true that the larger wavelengths of extremely low frequencies are basically nondirectional, the fact is that, when installing a subwoofer within the limited confines of a room, reflections, standing waves and absorptions generated within the room will strongly influence the performance of any subwoofer system. As a result, specific location of the subwoofer becomes important, and we strongly recommend that you experiment with placement before choosing a final location. Placement will depend upon your room (for example, whether or not your room permits placement of the subwoofer near either satellite) and the amount and quality of bass required. 5 WALL - MOUNTING THE SATELLITES AND CENTER CHANNEL The L150A satellites and center channel are designed to be mounted on the wall. Connect each + terminal on the back of the amplifier or receiver to the respective + (red) terminal on the speaker. Do not reverse polarities (i. e. , + to ­, or ­ to +) when making connections. Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment. NOTE: On certain models using hexagonal terminal nuts, a small socket wrench is provided to help in properly tightening the terminals. The satellites and center channel speaker feature terminals that can be connected in several different ways ­ e. g. , spade terminals and direct wiring (as shown here). Wiring diagram shows polarity connections for one channel of a home theater system. 7 SUBWOOFER CONTROLS Rear Panel Subwoofer Connections If you have a Dolby® Digital or DTS® receiver/processor with a low-frequency-effects (LFE) or subwoofer output: RECEIVER/PROCESSOR SUBWOOFER OR LFE OUTPUT 15' (4. 5m) Subwoofer cable included If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output: RECEIVER/PROCESSOR POWER CS100SUB/ 230 § AC 220V -230 V z 50Hz-60H 250 W att s Phase Switch LFE Input Line-Level Inputs Power Indicator LED Subwoofer-Level Control Power Switch 15' (4. 5m) Subwoofer cable included C A U TIO N S C R I K O F E LE C TR I S H O C K D O N O T O PEN "W ARNI :FO R CO NTI NG NUED PRO TECTI N AG AI O NST RI SK RE, REPLACE O NLY W I TH O F FI SAM E TYPE T 1. L/ 6A 250V FUSE" "AVERTI SSEM ENT:UTI SEZ UN LI BLE DE RECHANG E DE M EM E FUSI TYPE T 1. L/ 6A 250V" T 1. 6AL/25 V 0 NOTE: If your receiver/processor has only one sub out, you may use either the L or R input. Important!Whenever changing cables, pulling plugs, etc. , ALWAYS TURN OFF ALL EQUIPMENT, including the subwoofer. CS100SUB/ 230 POWER § AC 220 -230 V V 50Hz-0Hz 6 250 W att s R I K O F E LE C TR I S H O C K S C D O N O T O PEN C A U TIO N "AVERTI SSEM ENT:UTI SEZ UN LI FUSI BLE DE RECHANG E DE M EM E TYPE T 1. L/ 6A 250V" "W ARNI :FO R CO NTI NG NUED PRO TECTI N AG AI O NST RI SK O F FI RE, REPLACE O NLY W I TH SAM E TYPE T 1. L/ 6A 250V FUSE" T 1. 6AL/25 V 0 8 OPERATION Surround Modes When using the L150A speakers in a Dolby Digital or DTS home theater system, make sure all speakers are set to "Small" In a . [. . . ] A Few Suggestions We recommend that you do not operate your speakers or subwoofer with the bass, treble and loudness controls set to full boost. This will place undue strain on your electronics and speakers, and could damage them. Once you have confirmed that the subwoofer is active, proceed by playing a CD or DVD. Set the overall volume control of the receiver/processor to a comfortable level. [. . . ]