LG RL4 User manual
OWNER’S MANUAL
MFL71281408
HIGH POWER
SPEAKER SYSTEM
Please read this manual carefully before operating your set and retain it for future
reference.
MODEL
RL4
1901_Rev01
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
www.lg.com
Getting Started2
Safety Information
1
Getting Started
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK
HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN
OR MOISTURE.
CAUTION: The apparatus should not be exposed to
water (dripping or splashing) and no objects lled
with liquids, such as vases, should be placed on the
apparatus.
WARNING: Do not install this equipment in a
conned space such as a book case or similar unit.
CAUTION: Do not use high voltage products around
this product. (ex. Electrical swatter) This product may
malfunction due to electrical shock.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This lightning ash with arrowhead
symbol within an equilateral
triangle is intended to alert the
user to the presence of uninsulated
dangerous voltage within the
product’s enclosure that may be of
sufcient magnitude to constitute
a risk of electric shock to persons.
The exclamation point within an
equilateral triangle is intended
to alert the user to the presence
of important operating and
maintenance (servicing)
instructions in the literature
accompanying the product.
CAUTION: Do not block any ventilation openings.
Install in accordance with the manufacturer’s
instructions.
Slots and openings in the cabinet are provided for
ventilation and to ensure reliable operation of the
product and to protect it from over heating. The
openings should never be blocked by placing the
product on a bed, sofa, rug or other similar surface.
This product should not be placed in a built-in
installation such as a bookcase or rack unless
proper ventilation is provided or the manufacturer’s
instruction has been adhered to.
NOTICE: For safety marking information including
product identication and supply ratings, please refer
to the main label on the bottom or the other surface
of the product.
Getting Started 3
CAUTION concerning the Power Cord
The Power Plug is the disconnecting device. In case
of an emergency, the Power Plug must remain readily
accessible.
Check the specication page of this owner’s manual
to be certain of the current requirements.
Do not overload wall outlets. Overloaded wall outlets,
loose or damaged wall outlets, extension cords,
frayed power cords, or damaged or cracked wire
insulation are dangerous. Any of these conditions
could result in electric shock or re. Periodically
examine the cord of your device, and if its appearance
indicates damage or deterioration, unplug it,
discontinue use of the device, and have the cord
replaced with an exact replacement part by an
authorized service center. Protect the power cord
from physical or mechanical abuse, such as being
twisted, kinked, pinched, closed in a door, or walked
upon. Pay particular attention to plugs, wall outlets,
and the point where the cord exits the device.
CAUTION: No naked ame sources, such as lighted
candles, should be placed on the apparatus.
Symbols
Refers to alternating current(AC).
~
Refers to direct current(DC).
0
Refers to class II equipment.
Refers to stand-by.
1
Refers to “ON” (power).
!
Refers to dangerous voltage.
1
Getting Started
Table of Contents4
Table of Contents
1 Getting Started
2 Safety Information
6 Unique Features
7 Playable file Requirement
7 – Music file requirement
7 – Compatible USB Devices
7 – USB device requirement
8 Top panel
9 Rear panel
10 How to place the unit
2 Connecting
12 AC Power Cord Connection
12 Optional Equipment Connection
12 – AUX IN Connection
13 – AUX OUT Connection
14 – USB Connection
3 Operating
15 Basic Operations
15 – USB Operations
16 – AUTO DJ
17 Using BLUETOOTH® wireless technology
17 – Listening to music stored on the Bluetooth
devices
20 Using the LG XBOOM App
20 – About “LG XBOOM” App
20 – Install “LG XBOOM” App onto Your
Bluetooth Device
21 – Activate Bluetooth with “LG XBOOM” App
22 Sound adjustment
22 – Setting the sound mode
23 Other Operations
23 – DEMO
23 – Using Microphone
26 – LIGHTING
26 – Auto power down
27 – AUTO POWER On
27 – Auto function change
28 LG Sound Sync
29 WIRELESS PARTY LINK Connection
29 – Setting the TWIN mode
Table of Contents 5
4 Troubleshooting
31 Troubleshooting
31 – General
31 – NOTES to release Demo mode
5 Appendix
32 General specifications
33 Trademarks and Licenses
33 Maintenance
33 – Handling the Unit
1
2
3
4
5
Getting Started6
Unique Features
BLUETOOTH®
1
Listens to music stored on your Bluetooth device.
Getting Started
AUTO DJ
Blends the end of one song into the beginning of
another for seamless playback.
LG XBOOM
LG XBOOM is an app designed to let you take
control of some of LG’s latest audio devices. (Page
20~21)
LG Sound Sync
Controls volume level of this unit by the remote
control of your LG TV that is compatible with LG
Sound Sync.
Getting Started 7
Playable file Requirement
Music file requirement
MP3/WMA le compatibility with this unit is limited
as follows.
y Sampling frequency : within 32 to 48 kHz (MP3),
within 32 to 48 kHz (WMA)
y Bit rate : within 32 to 320 kbps (MP3),
40 to 192 kbps (WMA)
y Maximum les : 2,000
y Maximum folders : 200
y File extensions : “.mp3”/ “.wma”
y Certain MP3/WMA les may not be played
depending on the type or format of the le.
Compatible USB Devices
y MP3 Player : Flash type MP3 player
y USB Flash Drive :
Devices that support USB2.0 or USB1.1.
y The USB function of this unit does not support all
USB devices.
USB device requirement
y Devices which require additional program
installation when you have connected it to a
computer, are not supported.
y Do not extract the USB device while in operation.
y For a large capacity USB, it may take longer than a
few minute to be searched.
y To prevent data loss, back up all data.
y If you use a USB extension cable or USB hub, the
USB device is not recognized.
y Using NTFS le system is not supported. (Only
FAT(16/ 32) le system is supported.)
y This unit recognizes up to 2,000 les.
y External HDD, Card readers, Locked devices, or
hard type USB devices are not supported.
y USB port of the unit cannot be connected to PC.
The unit cannot be used as a storage device.
y Some USB may not work with this unit..
1
Getting Started
Getting Started8
Top panel
a
1
Getting Started
b
c
a Display window
b 1 (Standby)
Turns the power on or off.
LIGHTING
Selects the lighting mode.
3 TWIN
Connects two speakers for TWIN mode in
WIRELESS PARTY LINK.
SOUND EFFECT / BASS BLAST (or BASS
BLAST+)
- Chooses sound impressions.
- Press and hold to select BASS (or BASS+)
effect directly.
c AUTO DJ
Selects the AUTO DJ mode.
N (Play/Pause)
Starts or pauses playback.
C/V (Skip/Search)
- Skips backward or forward.
- Searches for a section within a file.
d MIC ECHO / DEMO
- Selects ECHO mode.
- In power off status, if you press MIC ECHO /
DEMO, show DEMO mode.
VOCAL EFFECTS
Selects various vocal effects mode.
KEY CHANGER
e
d
Changes the key to suit your vocal range with
C/V (Skip/Search) button.
VOICE CANCELLER
You can reduce the vocal tones during music
playback from various input sources.
e F (Function)
- Selects the function and input source.
- Press and hold to adjust delay time when using
PARTY LINK with AUX.
Input source / Function Display
USB USB
AUX input AUX
Bluetooth BT
LG Sound Sync (Wireless) LG TV
MIC (Microphone) VOL (Volume)
Adjusts microphone volume.
+/- (Volume)
Adjusts speaker and microphone volume.
Rear panel
a MIC (Microphone) jack
b AUX IN / OUT (L/R)
c USB port
d AC IN socket
Getting Started 9
1
Getting Started
a b c d
Getting Started10
How to place the unit
Automatically optimize the sound
1
Getting Started
It helps to automatically optimize the sound to suit
the installation conditions (Horizontal or Vertical).
If the installation method is changed (‘Horizontal
Vertical’ or ‘Vertical Horizontal’), it is indicated by
‘VERTICAL MODE’ or ‘HORIZON MODE’ in the display
panel.
Horizontal
Vertical
Caution
>
y Be careful to make sure children do not put
their hands or any objects into the *speaker
duct.
* speaker duct : A hole for plentiful bass
sound on speaker cabinet (enclosure)
y Do not sit on the unit or push the unit.
Otherwise it may result in malfunction and
causing personal injury and/ or property
damage.
y Do not place the unit on an unstable position
and place the unit at a safe distance from the
child’s reach.
y Be careful that the unit should not fall down.
Otherwise it may result in malfunction and
causing personal injury and/ or property
damage.
y Watch out for the foot when you lay the unit
horizontally.
Useful functions for using the unit
Function Description To do Do this
Press and hold N for 5 seconds in BT
(Bluetooth) function.
Press and hold N for 5 seconds in BT
(Bluetooth) function.
Turn off the unit by pressing 1 on the unit
for 5 seconds.
Turn off the unit by pressing 1 on the unit
for 5 seconds.
BT Lock On/Off
(Page 19)
Auto Power On
(Page 27)
It allows you to connect a
Bluetooth device only on
BT (Bluetooth) and LG TV
functions.
Initial setting of this function
was set to off.
It allows the unit to turn on
automatically by input signals :
LG TV or BT (Bluetooth)
ON
OFF
ON
OFF
Getting Started 11
1
Getting Started
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