User manual JBL G CENTER

[. . . ] You should also have your Left and Right speakers within a 2 ft. or less height range of your G Center for proper sonic performance (see Figure 1). If for some reason you cannot place your G Center on top of the Monitor/TV, you may place it just below the Monitor/TV. [. . . ] Connecting the loudspeaker in this manner ensures that it will be in phase; that is, work together rather than in opposition to the left and right channel speakers. Connecting 2 G SERIES LOUDSPEAKERS loudspeakers out of phase will not damage them, but will result in less bass and poor imaging. Center Channel Volume To properly adjust your center channel volume, please refer to the owner's manual that came with your AV Receiver for proper adjustment procedures. Before you attempt to adjust the volume, you need to select the proper center channel mode on your AV Receiver. Select the "Center Normal" mode. Most amps have a "test tone" or "noise sequencer" feature to help you balance the center channel with the rest of your system. Using the controls on your AV receiver/amp, adjust the center channel level (volume) control so that the sound from the center speaker is the same level at your normal listening position, as the sound from the left and right front speakers. TROUBLESHOOTING The vast majority of new speaker "malfunctions" end up being traced to connections or switch settings. Check the following tips first, before requesting service. POWER HANDLING Thanks to its high efficiency, the JBL G Center loudspeaker will produce reasonable volume levels in a room of moderate size with very little amplifier power. However, using a small amplifier to obtain the desired volume listening levels may lead to overdriving the amplifier. This will generate high distortion levels and may cause damage to your loudspeaker. For the best performance, an amplifier should be selected with an output rating that is greater than the maximum power that will be used. This margin of reserve power will ensure that the amplifier will not attempt to deliver more power than its design allows. However, the amplifier's power rating per channel must not exceed the maximum recommended amplifier power for that specific loudspeaker model. Please see the specification section for details. Following these guidelines will provide virtually distortion-free sound reproduction and long loudspeaker life. 3 No sound at all or very faint sound from the center channel speaker 1. [. . . ] Do not return products to the JBL factory without prior authorization. SERVICE Should your loudspeaker ever need service, return it to the JBL dealer from whom it was purchased. If for some reason this is impractical, in the United States, call 800-336-4JBL for your nearest warranty station. Military Specifications High Frequency Dome Transducer Low Frequency (High Polymer Laminate) Crossover Frequency Frequency Response (­ 6dB) Sensitivity (1 Watt /1 meter) Nominal Impedance Recommended Amplifier Power* External Dimensions (HxWxD) External Dimensions (millimeters) Weight (each) Shipping Weight G Center 14mm Titanium Laminate 3-1/2" (Two) 5. 5 kHz 80 Hz to 20 kHz 87dB 8 Ohms 10 to 80 Watts 5-3/16" x 14-1/4" x 6-5/8" 132 x 362 x 168mm 7 lbs (3. 2 kg) 10 lbs (4. 5 kg) *The maximum recommended amplifier power rating will insure proper system headroom to allow for occasional program peaks. [. . . ]