JVC SX-L77 User Manual

SPEAKER SYSTEM

SX-L77

English

INSTRUCTIONS

LVT1283-002A

[U]

38.0 kg

Thank you for purchasing a JVC speaker.
Before you begin using it, please read the instructions carefully
to be sure you get the best possible performance. If you have any
questions, consult your JVC dealer.

English

Warnings, Cautions and Others

7 Precautions for installation

•To avoid personal injury or accidentally
dropping the unit, have two persons unpack,
carry, and install the unit.

• Do not install the speakers on an uneven
surface or in a place subject to vibration;
otherwise, they may fall over, causing damage or injury.
–Take the occurrence of earthquakes or other physical

shocks into consideration when selecting the installation
place, and secure the speakers thoroughly.

•To prevent deformation or discoloration of the cabinet, do not
install the speakers where they are exposed to direct sunlight
or high humidity, and avoid installation near air conditioning
outlets.

• Speaker vibrations may cause howling. Place the speakers as
far away from the player as possible.

• The speakers are magnetically shielded to avoid color
distortions on TVs. However, if not installed properly, it may
cause color distortions. So, pay attention to the following when
installing the speakers.
– When placing the speakers near a TV set, turn off the TV’s

main power switch or unplug it before installing the
speakers.
Then wait at least 30 minutes before turning on the TV’s

main power switch again.
Some TVs may still be affected even though you have followed
the above. If this happens, move the speakers further away
from the TV.

•Tuner reception may become noisy or hissing if a speaker is
installed near the tuner. In this case, leave more distance
between the tuner and the speakers or use an outdoor
antenna for better tuner reception without interference from
the speakers.

• Do not lean against the speakers, as the speakers could fall
down or break, possibly causing an injury. Especially be
careful that children do not lean against them.

7 Precautions for daily use

•To maintain the appearance of the speakers

– Wipe with a dry, soft cloth if the cabinet should become

dirty.
If very dirty, wipe with a cloth applied a small amount of
water or neutral detergent, then wipe with a dry cloth.

– Do not use chemicals such as benzine and thinner for

cleaning the cabinet.

•To improve the sound field

– It is recommended to leave a space of more than 50 cm

between the speakers and the wall.

– If the speakers are facing a solid wall or glass door, etc., it is

recommended to furnish the wall with materials that absorb
sounds, for example by hanging up thick curtains, to prevent
reflections and standing waves.

•To use the speakers without any trouble

– Do not reproduce sounds at so high a volume that they are

distorted; otherwise, the speakers may be damaged by
internal heat buildup.

– When moving the speakers, do not pull the speaker cords;

otherwise, the speakers may fall over, causing damage or
injury.

Preparation

7 Checking the supplied accessories

• Speaker grille (1)

If any item is missing, contact your dealer immediately.

7 Adjusting the feet

If the speaker is unstable, adjust each foot until it stands stably.

•To avoid personal injury, and physical damage both to the
speaker and to the floor be careful not to drop the speaker on
your feet.

•Have two persons to adjust the feet to avoid falling off the
speaker.

• Do not touch the speaker units while adjusting the feet.

• When installing the speaker on the floor, be careful not to
place it over your hands.

Feet

7 About speaker grille

To attach the speaker grille, put the projections of the speaker
into the holes of the speaker grille.

• Do not press the speaker grille strongly.

Back of the speaker grille

The larger part should be

upper on the grille.

Holes

Projections

Holes

To remove the speaker grille, insert your fingers at the bottom
of the speaker grille, then pull upward.

2

Connection

SPEAKERS

RIGHT

LEFT

LOW FREQUENCY

(
WOOFER ONLY

)

LOW FREQUENCY

(
WOOFER ONLY

)

SPEAKERS

RIGHT

LEFT

LOW FREQUENCY

(
WOOFER ONLY

)

HIGH FREQUENCY

LOW FREQUENCY

(
WOOFER ONLY

)

HIGH FREQUENCY

7 Connecting the speaker system to the amplifier

Before connecting:

• Make sure to match the polarity (ª and ·) when connecting

the speaker cords.

•Turn off the power to the amplifier before connecting the
speaker system; otherwise, the speakers may be damaged.

• The impedance of each speaker is 6 Ω.
If this does not match with the speaker impedance range
indicated on the amplifier, you cannot connect this system to
the amplifier.

• The maximum power handling capacity of the SX-L77 is
180 W. Excessive input will result in abnormal noise and
possible damage.

• Be sure to turn down the volume level on the amplifier to
prevent unwanted noise before performing following
operations:
–Turning on or off other components
– Operating the amplifier
–Tuning FM stations
–Fast-forwarding a tape
– Continuously reproducing high frequency oscillation or high

pitch electronic sounds

– Connecting or disconnecting a microphone

• When using a microphone, do not aim it at the speakers or
use it near the speakers; otherwise, the howling which occurs
may damage the speakers.

• Before replacing the cartridge, always turn off the power both
to the amplifier and to the turntable; otherwise, the clicking
noise may damage the speakers.

• Use speaker cords as follows;
– Buy thick speaker cords rather than thin cords, and make

them as short as possible for connection.

– Use speaker cords of the same length for both left and right

speakers.

– Do not use long speaker cords; otherwise, the sound quality

may deteriorate.

– Using a special speaker cord such as a litz wire, a coaxial

cable, or a cord which has the specified connecting
directionality may influence the sound quality.

7 Connecting the speaker cord

Connect the “INPUT” terminal of the speaker to the speaker
terminal of the amplifier.

7 Conventional connection

1

Loosen the knobs of the “FULL RANGE” terminals.

2

Fit the speaker cords into the grooves of the “FULL
RANGE” terminals, then tighten the knobs to secure the
speaker cords and short-circuit plates.

FULL RANGE terminals

Short-circuit
plates

Speaker cord
(not supplied)

7 Bi-wiring connection

This speaker is bi-wireable. Comparing with the conventional
connection, the bi-wiring connection makes the sound field
larger, deeper, and richer.

1

Loosen all speaker terminal knobs and detach the
short-circuit plates.

Short-circuit plates

2

Connect the “FULL RANGE” terminals and “LOW
FREQUENCY” terminals separately to the speaker
terminals of the amplifier.

LOW FREQUENCY terminals

FULL RANGE terminals

English

(Red)

Rotate the speaker terminal
knob counterclockwise and fit

(Black)

the speaker cord into the
groove. Then rotate the knob
clockwise to secure the cord.

(Red)

• Make sure to match the polarity (ª and ·); otherwise, the
surround effect will become less effective.

Speaker cord
(not supplied)

3