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12

A Note on Power
Handling

As a result of their high effi-

ciency, 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 vol-

ume levels could lead to over-

driving the amplifier. This will

generate high distortion levels

which can easily damage loud-

speakers, 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 over-

stressed speaker. 

For the best performance and

system reliability, you should

select an amplifier with an output

rating greater than the maximum

power likely to be used to gener-

ate the desired volume levels. 

If you want your system “Loud 

+

Clear,” we suggest that you step

up to a JBL power amplifier

which has an RMS power rating

equal to, but not exceeding the

Maximum Recommended

Amplifier Power listed in the

specifications of your specific

JBL speaker. This margin of

reserve power will ensure that

the amplifier will not attempt to

deliver more power than its

design allows. Your dealer will be

happy to point out which high

power JBL amplifiers are opti-

mum for your application and 

listening habits.

Following these guidelines will

provide virtually distortion-free

sound reproduction and long loud-

speaker life. 

WARNING: Playing loud music

over 120dB can permanently

damage your hearing. The maxi-

mum volume levels achievable

with JBL components and high

power amplification may exceed

safe levels for extended listening.

When listening at high volume

levels, always use hearing protec-

tion or turn it down!

GT4.0c, 5.0c, 6.0c OM  7/16/98 9:54 AM  Page 12

Содержание Grand Touring GT 4.0 c

Страница 1: ...OURING SERIES N UINE JB L omotive ent Systems GT6 0c Owner s Manual ...

Страница 2: ...t reducing breakup at high listen ing levels This cone is sus pended by a heavy Butyl rubber surround which serves to absorb any remaining cone resonances for the clearest most articulate reproduction of voices and other mid range sounds As a bonus the Butyl rubber surround is impervious to temperature extremes and humidity making it ideal for automotive applications By following the installation ...

Страница 3: ...03 and h The e ANGLE MOUNT 2 1 Line up tab with slot on bracket Push tweeter into bracket and turn clockwise 2 1 Figure 1 ...

Страница 4: ...Trim Ring Car Door Grille Screen Figure 2a Grille mounting Typical installation of the GT4 0c and GT5 0c woofers with grilles as shown in Figure 2a ...

Страница 5: ...05 o ed not sed r ove IN LINE CROSSOVER mylar capacitor 4 ohms 5 watt min resistor sold separately cut wire here after capacitor Figure 3 ...

Страница 6: ...4b posite sides re 4a Mounting Ears Removed Figure 4b Two Screw Mounting Configuration ...

Страница 7: ... Notch on Speaker with Notch on Trim Ring Grille Screen Hole Cutout Grille Trim Ring Figure 5b Figure 5c Custom Door Mounting with Grille Screw Patterns Fit DIN European 165 170mm Mounting Holes 6 0c woofer I pat pend own in ...

Страница 8: ...Figure 5e ting the GT6 0c woofer in 0mm DIN European lations using the Intermount II shown in Figures 5d and 5e Rear Mounting ...

Страница 9: ...egration is achieved when the tweeter is mounted close to the midwoofer speaker This helps smooth the transition from the midrange and tweeter crossover point Choosing mounting locations which satisfy all of the above cri teria will provide the most satis fying performance Figure 6 ...

Страница 10: ...eeters GTC Component System connected to speaker outputs of a High Powered Head Unit GTC Midwoofers Left Right Left Channel Right Channel In line Capacitor GTC04 Connected to GTC Midwoofer GTC Midwoofer Connected to Amplifier GTC04 Tweeters GTC Midwoofers Amplifier output set at Full Range or High Passed at f 80Hz Figure 7 Figure 8 ...

Страница 11: ...as well as for interference with window crank and power window mecha nism If mounting elsewhere check for clearance around rear deck torsion bars glove box or other structural elements Do not mount speakers where water may splash on the cones Make sure that it will be easy to run connecting wires to the speakers Trace speaker wire paths before you undertake mounting Always disconnect the ground wi...

Страница 12: ...fier will not attempt to deliver more power than its design allows Your dealer will be happy to point out which high power JBL amplifiers are opti mum for your application and listening habits Following these guidelines will provide virtually distortion free sound reproduction and long loud speaker life WARNING Playing loud music over 120dB can permanently damage your hearing The maxi mum volume l...

Страница 13: ...d Drive Neodymium Magnet Tweeter with 1 2 Magnet Tweeter with 1 2 Dome Surface and Flush Dome Surface and Flush Mounting Brackets Supplied Mounting Brackets Supplied Graphite Reinforced Graphite Reinforced Polytex Woofer Cone Polytex Woofer Cone with Butyl Rubber Surround with Butyl Rubber Surround 4 Ohms 4 Ohms 5 110 Watts RMS 5 100 Watts RMS 60Hz 21kHz 70Hz 21kHz 90dB 90dB 2 3 8 1 3 8 2 1 2 2 ...

Страница 14: ...d outside the United States contact your local dealer for repair or replacement Do Not Return Products to the JBL Factory without Authorization They will be Returned Unopened You are responsible for transport ing your product for repair or replacement JBL will pay reason able return charges for delivery to any location in the United States if the repair or replacement is covered under the warranty...

Страница 15: ...15 ...

Страница 16: ...C E L E B R A TI N G 5 0 Y E A R S ...

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