User manual JBL GTO923

[. . . ] If, after having read it, you decide that you would rather leave installation to a professional, consult your JBL Grand Touring Dealer. Bend up and down repeatedly to break off or use tin snips. · Some Toyota installations may require mounting ears to be removed from opposite sides. · Some European car installations may require all four ears to be removed. Mounting Ears Removed Car Door Grille Screen Autosound at its Best Your JBL GT series multi-element speakers are built to meet the same rigorous standards of construction and performance that have long established JBL's renowned home and professional speakers. [. . . ] This will make each listener slightly off-axis to the tweeter that is closest to that listener, but on axis to the most distant speaker, which helps compensate for the fact that each listener is always closer to one speaker than to the other (see Figures 4a and 4b). Choosing mounting locations which satisfy all of the above criteria will provide the most satisfying performance. A Note on Power Handling As a result of their high efficiency, all JBL loudspeakers will produce reasonable volume levels in the automotive environment using very little amplifier power. However, the use of a small amplifier to attain very high volume levels could lead to overdriving the amplifier. This will generate high distortion levels which can easily damage loudspeakers, even if the rated power of the amplifier is below the rated maximum power handling of the loudspeaker!As a general rule, do not turn up the volume control past the point where you hear distortion in the form of either signal distortion from an overdriven amplifier or mechanical noise from an overstressed speaker. For the best performance and speaker reliability, you should select an amplifier with an output rating slightly higher than the maximum power likely to be used to generate the desired volume levels. This margin of reserve power will ensure that the amplifier will not attempt to deliver more power than its design allows. WARNING: Playing loud music over 120dB can permanently damage your hearing. The maximum volume levels achievable with JBL speakers combined with high power amplification may exceed safe levels for extended listening. When listening at high volume levels, always use hearing protection or turn it down! Aim Triangle of Tweeter Diffuser Toward Listener Installation Warnings and Tips · Be careful not to cut or drill into fuel tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when working on your vehicle. Inspect behind panels before you cut or drill. · Make sure that the speaker will physically fit in the mounting location. If door mounting, check for adequate clearance with the window in both closed and open positions as well as for interference with the window crank and power window mechanism. If mounting elsewhere, check for clearance around rear deck torsion bars, glove box or other structural elements. · Do not mount speakers where they will get wet. · Make sure that it will be easy to run connecting wires to the speakers. [. . . ] Do not return products to the JBL factory without prior authorization. General Care The loudspeaker grilles may be cleaned with a slightly damp cloth. Do not use any cleaners or solvents on the grilles or the speaker drivers. Safety Note To avoid the dangers of accidental suffocation, please properly dispose of the plastic bag used in the speaker packaging. Steen Michaelsen JBL Europe A/S Birkerød. 3/97 04 JBL Consumer Products 80 Crossways Park West Woodbury, NY 11797 8500 Balboa Blvd. [. . . ]