JBL GCENTER
Manual de Usuario

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 �rst, before requesting service.

POWER HANDLING
Thanks to its high ef�ciency, the JBL G Center loudspeaker will produce reasonable volume levels in a room of moderate size with very little ampli�er power. However, using a small ampli�er to obtain the desired volume listening levels may lead to overdriving the ampli�er. This will generate high distortion levels and may cause damage to your loudspeaker. For the best performance, an ampli�er 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 ampli�er will not attempt to deliver more power than its design allows. However, the ampli�er's power rating per channel must not exceed the maximum recommended ampli�er power for that speci�c loudspeaker model. Please see the speci�cation 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. Speaker wire has become disconnected. 2. One of the connections between sound source and AV receiver/amp is faulty or has become disconnected. 3. AV receiver/amp center channel mode not selected. Please select a mode that activates the center channel. 4. AV receiver/amp "audio direct" switch is activated. This switch should be off to activate the 5 speaker surround mode. 5. Sound source (VDP, VCR, CD, cassette deck, turntable) not turned on, not activated, not hooked up or not selected on AV receiver/amp front panel. Speaker plays at low volumes but shuts off as volume is increased OR sound turns on and off intermittently A few strands of speaker wire may be shorting out. Recheck the connections. Recheck the impedance of the amp.

GENERAL CARE
The grille is held in place by pins near the edges. To remove the grille, grasp it by both top and bottom edges and pull gently. To replace grille, reposition it carefully and press gently at the corners. Do not push on the center area of the grille. The loudspeaker cabinet may be cleaned with a slightly damp cloth. To remove dust from the grille cloth, use a vacuum with a brush attachment. Spots may be removed with a commercial spot remover. Do not use any