User manual JBL S412P

[. . . ] If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product. [. . . ] When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. The product should be mounted to a wall or ceiling only as recommended by the manufacturer. The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. 2 Part No. JBLULB 6/96 THANK YOU FOR CHOOSING JBL For more than 50 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 loudspeakers 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 complete the enclosed profile card. It enables us to keep you posted on our latest advancements, and helps us to better understand our customers and build products that meet their needs and expectations. JBL Consumer Products SPEAKER PLACEMENT Proper placement of the speakers is an important step in obtaining the most realistic soundstage possible. These recommendations are for the optimum placement of the loudspeakers. Slight variations will not diminish your listening pleasure. All of the Studio Series loudspeakers are videoshielded and can safely be placed near a television. MODEL: S412P Without pad With pad This model is shipped with four self-adhesive nonskid pads that are to be used if the loudspeaker is placed on a smooth-surfaced floor, such as tile or hardwood. Gently lay the speaker on its side (not its front or back) on a soft, nonabrasive surface. Attach each pad to the bottom of its foot in the widest portion of the recessed area. DO NOT attach the pads if the speaker will be placed on carpeting. NEVER drag the speaker to move it, as this will damage the pads, the feet and/or the wood cabinet itself. Always lift the speaker and carry it to its new location. 3 SPEAKER CONNECTIONS CONNECTION TIPS Speakers and electronics terminals 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 a poor stereo image. SPEAKER-LEVEL CONNECTIONS RIGHT LEFT ­ + ­ + ­+ ­ + Speaker Outputs Your S412P speakers should be connected to your receiver in two ways (at speaker level and line level) in order to achieve the best performance, especially when listening to program material recorded in digital 5. 1 formats, such as Dolby** Digital and DTS. ® Connect the left-front and right-front speaker terminals on your receiver or amplifier to the 5-way binding posts on the back of each S412P speaker. Remember to maintain the correct polarities ("+" to "+" and "­" to "­"). The S412P uses a red binding post for "+" and black for "­". These connections will provide full-range sound to all four transducers, and you should ALWAYS make these connections. [. . . ] To check if this is the case, reverse the speaker connections for ALL S412Ps in your system (and disconnect any other speakers in the system) so that the receiver/amplifier's (+) connector is connected to each S412P's (­) (black stripe) speaker connector. If you do this and the S412Ps function properly (bass increases as you turn your LFE/Subwoofer levelcontrol knobs clockwise), your receiver/amp uses inverting inputs. Simply connect all of the speakers in your system the same way, with the receiver or amplifier's (+) terminal to the speaker's (­) terminal, and the receiver or amplifier's (­) terminal to the speaker's (+) terminal. 7 S P E C I F I C AT I O N S S412P Maximum Recommended Amplifier Power*: 250W Powered Subwoofer Amplifier Output: 200W Nominal Impedance: 8 Ohms Sensitivity (2. 83V/1m): 91dB Frequency Response (­3dB): 32Hz ­ 20kHz Crossover Frequencies: 200Hz, 850Hz, 3500Hz High-Frequency Transducer: 1" Pure-titanium dome Midrange Transducer: 4" PolyPlasTM cone Midbass Transducer: 6" PolyPlasTM cone Low-Frequency Transducer: 12" PolyPlasTM cone Dimensions (H x W x D): 44" x 16" x 13-3/8" (1118mm x 406mm x 340mm) Weight (per speaker): 86 lb (39. 1 kg) *The maximum recommended amplifier power rating will ensure proper system headroom to allow for occasional peaks. We do not recommend sustained operation at these maximum power levels. [. . . ]