JBL G CENTER User Manual

INTRODUCTION

Congratulations on choosing JBL

loudspeakers. Their highly accurate,

uncolored and balanced sound

character will greatly increase your

enjoyment of recorded ﬁlms and

movies. JBL speakers are built with

careful attention to detail, using only

the highest quality materials. They will

provide many years of excellent

performance.

The G Center Channel Speaker is the

result of concentrated efforts to

combine traditional JBL performance

values with elegant contemporary

appearance. It is designed to give you

the clear, crisp, quality sound

reproduction needed to deliver

accurate, intelligible vocal information

required by a center channel speaker.

The G Center incorporates magnetic

shielding on the drivers which

prevents stray magnetic ﬁelds from

creating any interference or distortion

of the video picture. This allows

placement of the G Center directly on

top of the video monitor or TV.

Your G Center is very easy to set up,

but as it is a critical part of your

surround system, we recommend that

you take a few minutes to read this

Owner's Manual before you begin and

follow the instructions carefully.

PLACEMENT

As the center channel contains the

dialog and other central action sounds,

the speaker should be located very

close to the Monitor/TV centered with

the Monitor/TV’s center line. Place the

G Center directly on top of the

Monitor/TV with the front edge of the

speaker grille ﬂush with the edge of

the Monitor/TV. 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. When used in

this position, it is recommended that

G SERIES

LOUDSPEAKERS

OWNER’S

MANUAL

CENTER

you support the G Center so the

speaker is angled up to point towards

your seated ear level listening

position.

In Case Color Interference Occurs

The speaker is shielded to work with

video applications, however some

color interference may be observed

on the TV screen depending on the

type of your TV set. If color inter-

ference is observed, turn your TV

off for 15 minutes and move the

G Center back about 1" from the front

edge of the TV. Turn on the TV and

recheck. If this is not far enough,

move back further and experiment

until the interference disappears. You

may have to turn the TV off for a few

minutes and turn it on again to clear

the screen.

CONNECTIONS

To connect the G Center to the center

channel output of your AV receiver or

ampliﬁer, use two-conductor insu-

lated wire. Your JBL dealer can

recommend suitable cables, or you

can buy wire at most hardware or

electronic stores. We recommend #16

AWG wire as a minimum size. If your

speaker is more than 30 feet (10 m)

from your AV receiver or ampliﬁer,

use larger diameter, lower gauge

wire. Connections are made at the

terminals located on the back of the

G Center speaker. The terminals

accept bare wire or dual banana

plugs, either of which will provide

easy, secure connections.

Preparing the hookup wire

First determine the distance

between G Center and the AV

Receiver’s center channel output. Be

sure to consider any obstructions, i.e.

cabinets, furniture, etc.

2. Cut a length of speaker wire this

length.

3. Strip off 3/8" of insulation from both

ends of each conductor.

4. Twist each set of thin wires into a

tightly-bunched spiral.

5. At this point you need to identify a

visual difference between the two

conductors of each molded pair of

speaker wire. Differentiating marks

can be a different color wire (copper

or “silver”); a strand of yarn in one

conductor; thin, raised ribs on one

part of the outer insulation; or a

printed “+” marking on one of the

insulators. It does not make any

difference which of the two strands of

wire go to (+) and (–) on the speakers

and ampliﬁer, as long as both

speakers are connected identically.

Push down on the button below the

terminal and insert the wire, or the

banana plug, through the hole

(see Figure 2).

The red terminal on the loudspeaker

should be connected to the red or (+)

center channel connection terminal

on the AV receiver or ampliﬁer, and

the black to the black or (–).

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

Center

Speaker

Center

AV Receiver

Red

(–) (+)

Blk

Figure 2

(2 ft. or less)

Figure 1

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