Jbl 660GTI User Manual download pdf (Page 11)

Figure 20.

Figure 19.

OOFER MOUNTING CONSIDERATIONS

• All woofers require a rigid baffle and isolation between the front and back of the

speaker for best low-frequency extension.

•

The 660GTi woofer may be used in an infinite baffle or in a small sealed enclosure

with a volume equal to or larger than 1/8 ft

. The 560GTi woofer may be used in

an infinite baffle or in a small sealed enclosure with a volume equal to or larger

han 1/12 ft

• The GTi competition speaker systems include a choice of grille trim. See Figure 19 to

change to the carbon fiber grille trim.

TWEETER MOUNTING CONSIDERATIONS

• Use the waveguides, if possible.

• The waveguide requires a hole 4" in diameter for mounting.

• Aim the tweeters at a point in between the two front-seat positions,

if the waveguides will be mounted in the A-pillars or kick panels.

ADJUSTING THE CROSSOVER

• If you are bi-amping the speakers, remove the jumpers, as illustrated in Figure 20.

• If you are using the waveguides, move the switch to the “Waveguide” position.

• If you are not using the waveguide, move the switch to the “No Waveguide” position.

• After installing the system, set the “Tweeter Level” switch according to your

preference.

See pages 14–19 for dimensions, mounting and wiring diagrams, Thiele/Small

parameters and performance graphs.

ENGLISH

Model 560GT

i 660GTi

Description 5" 2-Way 6" 2-Way

professional-grade

automotive component

speaker system speaker system

Power Handling (W peak) 500 600

Power Handling (W RMS) 125 150

Sensitivity (dB @ 2.83V)

Frequency Response (Hz) 58–30k 50–30k

Crossover Frequency (Hz)

2500

oice Coil Diameter (mm)

Voice Coil Diameter (in) 2 2

Impedance 4 ohms 4 ohms

SPECIFICATIONS

Remove

Top Cover

Remover Four Top Cover Screws

Remove Jumpers

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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Jbl 660GTI User Manual Page 11

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