Használati útmutató JBL G400

JBL hangszóró G400

Olvassa el alább 📖 a magyar nyelvű használati útmutatót JBL G400 (4 oldal) a hangszóró kategóriában. Ezt az útmutatót 2 ember találta hasznosnak és 2 felhasználó értékelte átlagosan 4.5 csillagra

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Oldal 1/4

INTRODUCTION

Congratulations on choosing JBL

loudspeakers. Their highly accurate,

uncolored and balanced sound char-

acter will greatly increase your

enjoyment of recorded music. JBL

speakers are built with careful atten-

tion to detail, using only the highest

quality materials. They will provide

many years of excellent performance.

PLACEMENT

For the best stereo reproduction, the

two loudspeaker systems should be

placed an equal distance from your

listening position and separated so that

the angle between them, at the listen-

ing position, is between 40 and 60

degrees (see Fig. 1). For example, if

your listening position is 8 to 12 feet

(2.5 to 4 m) from each speaker, the two

systems should be about 8 feet (2.5 m)

apart. Placing the loudspeaker in a cor-

ner or against a wall will result in the

strongest (but not necessarily the most

accurate) bass. If possible, G models

that are ported on the back should not

be placed closer than 12 inches (305

mm) from the wall behind it.

For the best stereo imaging, we rec-

ommend that the systems be placed

so that the high frequency transduc-

ers are positioned approximately at

ear level of a seated listener. That’s

why smaller loudspeakers will beneﬁt

from placement on stands or book-

shelves. Every room is dierent and

there are dierent tastes. So don’t

hesitate to experiment on your own.

G SERIES

LOUDSPEAKERS

OWNER’S

MANUAL

100

200

300

400

500

40°-60°

Fig. 1

Thanks to their high efﬁciency, JBL

loudspeakers 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

unit. This will generate high distortion

levels and may cause damage to your

loudspeaker. For the best perfor-

mance, 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

power ampliﬁer’s power rating per

channel must not exceed the

maximum recommended ampliﬁer

power for that speciﬁc loudspeaker

model. Please see the speciﬁcations

section for details. Following these

two guidelines will provide virtually

distortion-free sound reproduction

and long loudspeaker life.

CONNECTIONS

To connect your JBL loudspeaker sys-

tems to a receiver or an ampliﬁer, use

two-conductor insulated wire. Your

JBL dealer can recommend suitable

cables, or you can buy wire at most

hardware stores. We recommend #16

AWG wire as a minimum size. If your

speakers are more than 30 feet (10 m)

from your receiver or ampliﬁer, use

larger diameter wire. Connections are

made at the terminals located on the

back of the loudspeaker system. The

terminals accept bare wire or dual

banana plugs, either of which will

provide easy, secure connections.

Preparing the hookup wire

1. First determine the distance

between the most distant speaker.

2. Now make the hookup wires for

both speakers this length, even if one

loudspeaker is much closer to your

ampliﬁer than the other. This will help

maintain proper signal balance.

3. Strip o 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 dierence between the two

conductors of each molded pair of

speaker wire. Dierentiating marks

can be a dierent 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 a

dierence which of the two

conductors 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 Fig. 2).

For each channel, the red terminal on

the loudspeaker should be connected

to the red or (+) loudspeaker

connection terminal on the receiver or

ampliﬁer, and the black to the black or

(–). Connecting the loudspeakers in

this manner ensures that they will be

in phase; that is, work together rather

than in opposition. Connecting the

loudspeakers out of phase will not

damage them, but will result in less

bass and poor imaging.

Left

Speaker

Red

(+)

Blk.

(–)

Right

Speaker

Red

(+)

Blk.

(–)

Amplier/

Receiver

+ L R+

Fig. 2

TROUBLESHOOTING

The vast majority of new speaker

“malfunctions” end up being traced to

connections or switch settings. Check

the following tips ﬁrst, before request-

ing service.

No sound at all or very faint sound

from both speakers

1. Amp/receiver tape monitor button

pushed in while using CD, FM or

phono inputs.

2. Wrong speaker switch, “A” or “B”

speaker output.

3. Sound source (CD, cassette deck,

turntable) not turned on, not

activated, not hooked up or not

selected on amp/receiver front panel.

No sound from one speaker

1. Balance control turned all the way

left or right.

2. Speaker wire has become

disconnected.

Both speakers play at low

volume but shut o as volume is

increased OR sound turns on and

o intermittently

A few strands of speaker wire may be

shorting out. Recheck the connections.

Recheck the impedance requirements

of the amp.

Bass is very weak AND/OR sound

seems to come from each speaker

separately, without creating a

stable stereo image between the

speakers.

1. The polarity (+&–) of one speaker

has been reversed relative to the

other. Double check connections.

2. Speakers are too far away from

back and side walls or too far apart.

Experiment again with the speaker

placement. If you are still experi-

encing problems, consult your JBL

dealer.

GENERAL CARE

The grille is held in place by pins near

the edges (except G40, which has a

non-removable grille). 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 cleaners or solvents on the

speaker drivers themselves.

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, call

800-336-4JBL for your nearest

warranty station. Do not return

products to the JBL factory without

prior authorization.

Speciﬁcations G40 G100 G200

High Frequency Transducer 2" ﬁber cone 14 mm 1"

Low Frequency Transducer 5" 5" 6-1/2"

Crossover Frequency 2.2 kHz 3 kHz 3 kHz

Frequency Response (–6 dB) 75 Hz – 20 kHz 70 Hz – 20 kHz 55 Hz – 20 kHz

Sensitivity (1 Watt /1 Meter) 86 dB 87 dB 88 dB

Nominal Impedance 8 Ohms 6 Ohms 6 Ohms

Power Handling Range 10 – 50 Watts 10 – 50 Watts 10 – 60 Watts

External Dimensions

(H X W X D) 11 x 6-1/2 x 7-1/4" 12-3/16 x 7-1/8 x 8-3/4" 15 x 9-1/4 x 8-13/16"

280 x 165 x 184 mm 310 x 181 x 222 mm 381 x 235 x 224 mm

Weight (each) 7 lbs / 3.2 kg 8 lbs / 3.6 kg 12.1 lbs / 5.5 kg

G SERIES LOUDSPEAKERS

Termékspecifikációk

Márka:	JBL
Kategória:	hangszóró
Modell:	G400

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