SAMSUNG MX-ST90B Sound Tower High Power Audio 1700W User Manual

: June 9, 2024
: Samsung

SAMSUNG MX-ST90B Sound Tower High Power Audio 1700W

SAMSUNG -ST90B-Sound-Tower-High-Power-Audio-1700W-PRODUCT -
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SAFETY INFORMATION

SAFETY WARNINGS
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER (OR BACK). NO USER-SERVICEABLE PARTS ARE INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. Refer to the table below for an explanation of symbols which may be on your Samsung product.

CAUTION: This symbol indicates that high voltage is present inside. It is dangerous to make any kind of contact with any internal part of this product.
WARNING: This symbol indicates that this product comes with important literature concerning operation and maintenance.

Class II product: This symbol indicates that a safety connection to electrical earth (ground) is not required. If this symbol is not present on a product with a power cord, the product MUST have a reliable connection to protective earth (ground).

AC voltage : Rated voltage marked with this symbol is AC voltage.
DC voltage: Rated voltage marked with this symbol is DC voltage.
Caution: Consult Instructions for use : This symbol instructs the user to consult the user manual for further safety related information.

WARNING

To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

CAUTION

Do not expose this apparatus to dripping or splashing. Do not put objects filled with liquids, such as vases, on the apparatus.
To turn this apparatus off completely, you must pull the power plug out of the wall socket. Consequently, the power plug must be easily and readily accessible at all times.

To avoid deterioration of water resistant
Check the following and use the unit correctly.

Deformation or damage from dropping the unit or subjecting it to mechanical shock may cause deterioration of the water resistant.
This unit does not have a design that is resistant to water pressure. Use of the unit in a location where high water pressure is applied, such as in the shower, may cause a malfunction.
Do not pour high-temperature water or blow hot air from a hair dryer or any other applicance on the unit directly. Also never use the unit in a place subject to high temperatures, such as in a sauna or near a heat source.
andle the cap with care. Port cover and AC plug cover plays a very important role in maintenance of the water resistant. When using the unit, make sure that the cap is closed completely. When closing the cap, be careful not to allow foreign objects inside. If the cap is not closed completely the water resistant may deteriorate and may cause a malfunction of the unit as a result of water entering the unit.
The product cannot be dumped to ensure it is water resistant.
IPX5 cannot be met when any JACK is plugged in.
In a state of electricity, IPX5 can be met when the power cord passes through the cover power slot and the cover power is completely closed, otherwise, it does not.

PRECAUTIONS

Ensure that the AC power supply in your house complies with the power requirements listed on the identification sticker located on the rear of your product. Install your product horizontally, on a suitable base (furniture), with enough space around it for ventilation (3~4 inches). Make sure the ventilation slots are not covered. Do not place the unit on amplifiers or other equipment which may become hot. This unit is designed for continuous use.
To fully turn off the unit, disconnect the AC plug from the wall outlet. Unplug the unit if you intend to leave it unused for a long period of time.
During thunderstorms, disconnect the AC plug from the wall outlet. Voltage peaks due to lightning could damage the unit.
Do not expose the unit to direct sunlight or other heat sources. This could lead to overheating and cause the unit to malfunction.
Protect the product from moisture (i.e. vases), and excess heat (e.g. a fireplace) or equipment creating strong magnetic or electric fields. Unplug the power cable from the AC wall socket if the unit malfunctions. Your product is not intended for industrial use. It is for personal use only. Condensation may occur if your product has been stored in cold temperatures. If transporting the unit during the winter, wait approximately 2 hours until the unit has reached room temperature before using.

ABOUT THIS MANUAL

The user manual has two parts: this simple paper USER MANUAL and a detailed FULL MANUAL you can download.

USER MANUAL
See this manual for safety instructions, product installation, components, connections, and product specifications.

FULL MANUAL
You can access the FULL MANUAL on Samsung’s on-line customer support centre by scanning the QR code on the left. To see the manual on your PC or mobile device, download the manual in document format from Samsung’s website. (https://www.samsung.com/us/support/downloads/)

Design and specifications are subject to change without prior notice.

CHECKING THE COMPONENTS

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-4

For more information about the power supply and power consumption, refer to the label attached to the product. (Label: Rear of the Sound Tower Main Unit)
To purchase additional components or optional cables, contact a Samsung Service Centre or Samsung Customer Care.

Carry the system
When moving the product, in order to avoid personal injury and/ or property damage, and achieve water resistance, please see the illustrations below.

When moving the product, do not drag or pull the product from the ground without the wheels sticking out.
Do not lift the set to prevent the set from injuring your feet.
To move the set, perform the following steps.
- Press the self-locking switch of the wheels respectively to rotate the two wheels out of the bottom of the set. When it clicks, it means that the wheels are adjusted in place. $SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-FIG-6 $2$$
- Use two hands to grab the handle on the back of the set and move it using the wheels as shown below Warning: Use caution when moving the sound tower on an uneven surface to avoid injury or damage to the unit or the surrounding environment.
- After the set is moved, press the self-locking switch of the two wheels respectively to rotate the wheels to the bottom of the set. When it clicks, it means that the wheels are adjusted in place.
The product should not be knocked over to ensure it keeps it’s water resistance.

Inserting Batteries before using the Remote Control (AAA batteries X 2)
Slide the battery cover toward the arrow until it is completely removed. Insert 2 AAA batteries (1.5V) oriented so that their polarity is correct. Slide the battery cover back into position. (the remote control does not support IPX5)

PRODUCT OVERVIEW

Top Panel of the Sound Tower

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-11

Rear Panel of the Sound Tower

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-13 SAMSUNG MX-
ST90B-Sound-Tower-High-Power-Audio-1700W-FIG-15

CONNECTING

CONNECTING THE SOUND TOWER

Connecting Electrical Power
Use the power cord to connect the Sound Tower to an electrical outlet in the following order: Connect the power cord to the Sound Tower and then to a wall socket.
See the illustrations below.

For more information about the required electrical power and power consumption, refer to the label attached to the product. (Label: Rear of the Sound Tower)
Water resistance can be met when the AC power cord is plugged in, but make sure that the cap is completely closed. Laying the Sound Tower on its side may damage internal components and keep the unit from being water resistant.

Connecting Group Play Mode
You can connect multiple audio systems in a wired group play mode to create a more interesting party environment and to produce higher sound output.

Connecting the wired Group Play mode

Connect the analogue audio cable to the OUT(Group Play) of the HOST.
- Sound Tower HOST can play music from any source.
Connect the analogue audio cable to the IN(AUX2) of 2nd Sound Tower and Set the source to AUX2. Set up Group Play by connecting all the systems using analogue audio cables.
Use the AUX or (Source) button to change the source to AUX2 for every Sound Tower except the Sound Tower HOST.
- Set one Sound Tower as the HOST and any music played on it will be shared among any other Sound Tower in the Audio group.

NOTES

Analogue audio cables are not supplied.
Depending on the length or characteristics of the cable, there may be a difference in operating distance.
Be sure to select the Audio In function on the last system.
In this configuration, the sound from the last system may lag behind others.
To stop Wired Group Play:
- Remove analogue audio cable from the HOST
- Change to a source other than AUX2 on any Sound Tower in the group besides the HOST
- Turn off the HOST
If the Wired Group Play function does not start:
- Check the connections.
- Ensure the audio cables are connected correctly.
- Make sure that the HOST is turned on, and has a music source connected to it, and the volume is not muted.
• Wired Group Play function does not work properly:
- Turn off the system. Then, turn it back on again to activate the function.
When a microphone is connected to the HOST and being used, the MIC sound is output to all the connected Sound Towers in the group.

Connecting wireless Group Play mode
You can connect multiple audio systems in a wireless group play mode to create a more interesting party environment and to produce higher sound output.

Precondition

When connecting a Sound Tower, make sure it is within 1 m distance.
Cannot set the mode to Group Play mode when sound tower is connected to a TV.
Before using Group Play mode, any sound towers should be taken out of Stereo mode.

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-19

Press the GROUP PLAY button on the HOST Sound Tower and wait until the “GROUP PLAY” LED switches from blinking slowly to blinking quickly. This Sound Tower will become the Sound Tower HOST.
- Only BT source can be used, selecting another source will cause Group Play mode to disconnect.
- Press and hold “GROUP PLAY” button for 5 seconds while the BT source is selected and the Group Play LED will blink quickly immediately.
Press the GROUP PLAY button on the SUB Sound Tower, and it will begin searching for the HOST while the “GROUP PLAY” LED blinks, and the LED will turn solid and the speaker will beep after connecting to the HOST.
If less than 20 minutes have passed since Group Play button was pressed, refer to Step 2 to connect additional SUB. If 20 minutes have passed since Group Play was pressed, repeat steps 1 and 2 to connect additional SUB.
- Play music on the HOST Sound Tower. Sound outputs from all the connected systems.

NOTES

All the Sound Tower models can connect in Group Play mode.
When “HOST” Sound Tower connects to a Samsung TV, the Group play mode will automatically disconnect.
Environmental conditions or other factors with connected devices may have an effect on playback quality.
If the light bar blinks pink and the speaker outputs a beeping sound, an error has occurred in the Group Play mode connection. Try Step 1 and 2 again.
The ADD STEREO button and PAIRING button on the SUB Sound Tower systems are not available while in wireless Group Play mode.
The ADD STEREO button on the HOST Sound Tower is not available while in wireless Group Play mode.
Bluetooth devices can search and connect with the HOST Sound Tower only, but the SUB cannot connect to any Bluetooth device.
If you power off or select any source other than BT on a SUB unit, the Group Play mode is disconnected.
This product does not support aptX audio stream with Wireless Group Play mode.
In this configuration, the sound from the last system may lag behind others.
If Wireless Group Play does not work properly:
- Turn off the system. Then, turn it back on again to activate the function.
Electronic devices may cause radio interference. Devices that generate electromagnetic waves must be kept away from the Sound Tower main unit – e.g., microwaves, wireless LAN devices, etc.
When using the wireless Group Play mode function, sound from a connected microphone is only output from the system to which the microphone is connected.

Disconnecting the wireless Group Play mode

Press and hold the GROUP PLAY button over 5 seconds (HOST or SUB).
- The speaker will beep and the Group Play LED will turn off.
If you select any source other than BT on the SUB units or turn off the HOST Sound Tower, the Group Play mode is disconnected.

LED Indications

LED	STATE	Description

Green

Connecting Stereo Mode
Connect two Sound Tower and use them with a mobile device to enjoy stereo mode, to make a larger listening area or to hear greater left and right audio separation.

Precondition

Both Sound Tower systems must be the same model to use the Stereo mode.
When connecting a Sound Tower, make sure it is within 1 m distance.
If the sound tower is in Group Play mode, need to exit it before using Stereo mode.
Cannot set the mode to Stereo mode when sound tower is connected to a TV.

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-21

The initial connection

After the initial connection is complete, if the ADD STEREO button is pressed on the MAIN or SUB Sound Tower, the Left and Right Speaker are swapped.

Press the ADD STEREO buttons of the two Sound Towers. The LED blinks on the ADD STEREO button.
When the connection is complete, each speaker beeps and the ADD STEREO LED turns solid. MAIN Sound Tower is identified by the Bluetooth PAIRING LED blinking.
- The MAIN Sound Tower outputs left channel sound and the SUB Sound Tower outputs right channel sound.
- Play music by connecting your mobile device to the MAIN Sound Tower via Bluetooth. Sound is output from both Sound Tower.

NOTES

Environmental conditions or other factors with connected devices may have an effect on playback quality.
If the ADD STEREO LED is solid red an error has occurred in the Stereo Group connection. Try steps 1 and 2 again.
Remote Controller, BT PAIRING, GROUP PLAY and Source buttons on the SUB Sound Tower are disabled while in Stereo Group mode.
The GROUP PLAY button on the MAIN Sound Tower is not available while in Stereo Group mode.
In any mode other than “BT” (ex. USB, AUX mode), music is played only from the MAIN Sound Tower and not the SUB Sound Tower.
The lighting colours between MAIN Sound Tower and SUB Sound Tower may vary.
This product does not support aptX audio stream with Stereo mode.
When using the wireless Stereo mode function, sound from a connected microphone is only output from the system to which the microphone is connected.
Electronic devices may cause radio interference. Devices that generate electromagnetic waves must be kept away from the Sound Tower main unit – e.g., microwaves, wireless LAN devices, etc.

Disconnecting the wireless Stereo mode
Press the ADD STEREO button (MAIN or SUB) for at least 5 seconds while the Stereo Group is connected.

The speaker will beep and the ADD STEREO LED will turn off.

Using Stereo Mode with a Samsung TV
Connect two Sound Towers and use them with a Samsung TV to enjoy stereo mode, to cover a larger listening area or to hear greater left and right audio separation.

Precondition

Both Sound Tower systems must be the same model to use the Stereo mode.
When connecting a Sound Tower or TV, make sure it is within 1 m distance.
Cannot set to Stereo Mode with Samsung TV if the Sound Tower is already connected to a TV via Bluetooth.
If the sound tower is in Group Play mode, need to exit it before using Stereo mode.

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-22

Connect two sound towers via stereo mode by pressing the ADD STEREO button on the two Sound Towers.
In “BT” mode, press the “AUX” button on the MAIN Sound Tower remote control for at least 5 seconds. The LED blinks on the ADD STEREO button.
Connect a RCA cable to the OUT(Group Play) on the MAIN and AUX2 IN on the SUB as shown.
- When the connection is complete, the “ADD STEREO” LED will stop blinking and turn solid, the speakers will beep, and the AUX2 LED on the SUB will turn on.
- The MAIN Sound Tower outputs the left channel sound and the SUB Sound Tower outputs the right channel sound. Press the ADD STEREO button on the MAIN or SUB Sound Tower to swap them between Left and Right.
- Connect a TV and MAIN Sound Tower via Bluetooth to play audio. Sound is output from both Sound Towers.

NOTES

Analogue audio cables are not supplied.
If the light bar blinks pink and the speakers beep, an error has occurred in the Stereo mode connection. Repeat steps 1 through 3.
In Stereo Group mode, the remote control, BT PAIRING, GROUP PLAY, and Source buttons on the SUB Sound Tower are disabled.
The GROUP PLAY button on the MAIN Sound Tower is not available in Stereo Group mode.
If the Samsung TV supports a simple connection, the connection pop-up is automatically displayed on the TV, and if you select “Yes”, it connects to the sound tower. If there is a previous connection history between Samsung TV and Sound Tower, they will be connected without pop-up.
The lighting colours may vary between the MAIN Sound Tower and the SUB Sound Tower.
When a microphone is connected to the MAIN and being used, the MIC sound is output to the SUB.

Disconnecting Stereo mode connection

Press the ADD STEREO button (MAIN or SUB) for at least 5 seconds after the Stereo Group is connected. Sound tower will beep and the LED on the ADD STEREO button turns off.

**CONNECTING AN EXTERNAL DEVICE

**

Connect to an external device via a wired or wireless network to play the external device’s sound through the Sound Tower.

Connecting an External Device via Analogue Audio Cable
A phone jack or RCA cable is a physical connection that transfers analogue audio signals. SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-23

3.5 mm stereo Cable (AUX1)

1. Connect AUX1 jack on the main unit to the AUDIO OUT jack of the Source Device using a 3.5 mm stereo cable.
2. Select “AUX1” mode by pressing the (Source) button on the top panel or on the remote control

RCA Cable (AUX2)
- Connect AUX2 (IN) terminals on the main unit to the AUDIO OUT terminals of the Source Device using an RCA cable.
- Select “AUX2” mode by pressing the (Source) button on the top panel or on the remote control.
- - You can also select a source using AUX button on the remote control.

NOTES

Analogue audio cables are not supplied.
Depending on the length or characteristics of the cable, there may be a difference in operating distance.
AUX1 and AUX2 does not support wireless Stereo and Group Play mode.

Connecting a mobile device via Bluetooth
When a mobile device is connected using Bluetooth, you can hear stereo sound without the hassle of cabling.

Precondition

When connecting to a new BT device, make sure it is within 1 m distance.
Disconnect from any Samsung TV before connecting to a mobile device.
SUB speaker can’t connect to BT when using Group Play or Stereo mode.

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-24

Press the PAIRING button on the rear panel of sound tower.
(OR) Press and hold the PAIRING button on the remote control for more than 5 seconds to enter the “BT PAIRING” mode.
On your device, select “[AV] MX-ST9B Series” from the list that appears.
- After the device is connected. The light bar will all be lit cyan, and the Bluetooth light on the rear panel is solid.
Play music files from the device connected via Bluetooth through the Sound Tower.

NOTES
If the device fails to connect

Sound tower will beep if BT is disconnected.
If a previously connected Sound Tower listing (e.g. “[AV] MX-ST9B Series”) appears in the list, delete it.
Then repeat steps 1 and 2.

Bluetooth connection

In Bluetooth connection mode, the Bluetooth connection will be lost if the distance between the Sound Tower and the Bluetooth device exceeds 10 meters.
The Sound Tower automatically turns off after 20 minutes in the Ready state.
The Sound Tower may not perform Bluetooth search or connection correctly under the following circumstances:
- If there is a strong electrical field around the Sound Tower.
- If several Bluetooth devices are simultaneously paired with the Sound Tower.
- If the Bluetooth device is turned off, not in place, or malfunctions.
Electronic devices may cause radio interference. Devices that generate electromagnetic waves must be kept away from the Sound Tower main unit – e.g., microwaves, wireless LAN devices, etc.

What is the difference between BT READY and BT PAIRING

BT READY: In this mode, you can use the previously connected TV or mobile device to connect to Sound Tower.
BT PAIRING: In this mode, you can connect a new device to the Sound Tower.
(Press and hold the PAIRING button on the remote control for more than 5 seconds or press the PAIRING button on the rear of the Sound Tower to enter the “BT PAIRING” mode.)

Using Bluetooth Multi connection
The Sound Tower can be connected to 2 Bluetooth devices at the same time.

Precondition

When connecting to a new BT device, make sure it is within 1 m distance.
Disconnect from any Samsung TV before connecting to a mobile device.
SUB speaker can’t connect to BT when in the Group Play or Stereo mode.

Bluetooth Multi Connection Indicator

Put the Sound Tower into “BT PAIRING” mode and connect each mobile device.
On your device, select “[AV]MX-ST9B Series” from the list that appears.
When the Sound Tower is connected to two mobile devices, The light bar will be fully lit in cyan, and the Bluetooth light on the rear panel will be solid.

How to operate Bluetooth Multi Connection Function

Play music from one of the connected Bluetooth devices while two devices are connected. If music is played from the Bluetooth device “B” while playing from device “A”, the music starts playing from device “B” and automatically pauses on device “A”.

NOTES

When connecting to a Samsung TV, the BT multi connection will automatically disconnect
If you want to connect the Sound Tower to a third device, you can disconnect the Sound Tower from one of the two currently connected devices and then connect the Sound Tower to the third device.
With the Sound Tower and two devices currently connected, when pairing to a new Bluetooth device, the devices currently connected may be disconnected.
Environmental conditions or other factors with connected devices may have an effect on playback quality.
Electronic devices may cause radio interference. Devices that generate electromagnetic waves must be kept away from the Sound Tower main unit – e.g., microwaves, wireless LAN devices, etc.
Bluetooth Multi connection may not be supported depending on the connected device’s specifications.
Removable/detachable Bluetooth devices (Ex: Dongle etc..), windows phone, laptops, TV, etc. do not support Bluetooth Multi connection.
After Bluetooth Multi connection pairing, there may be a slight delay before music starts playing depending on the Bluetooth devices.
If you move too far out of range from the Sound Tower without first disconnecting your Bluetooth device, it may take a few minutes to connect other Bluetooth devices. If you turn the Sound Tower off and back on, you can connect other Bluetooth devices without waiting.

Disconnecting the Sound tower from the Bluetooth device
Press the Source button on the top panel or on the remote control, and then change to any mode except “BT”.

Disconnecting takes time because the Bluetooth device must receive a response from the Sound tower.
When the Soundtower is disconnected from a Bluetooth device, the sound tower will beep.

Using Bluetooth Power On
When the Sound Tower is turned off, you can connect your smart device via a Bluetooth connection to turn it on.

Press and hold the BASS button on the remote control or on the top panel to enable the Bluetooth Power On function. Lighting bar will blink white once.
When the Sound Tower is off, connect your smart device via Bluetooth. (For information on Bluetooth connections, refer to your smart device’s manual.)
When the connection is complete, the Sound Tower turns itself on automatically in Bluetooth mode.
- Select the desired music to play from your smart device.

NOTE

Each time you press and hold the BASS button for 5 seconds, the LED lighting bar will blink white once and the status will alternate as follows:
BLUETOOTH POWER-ON→BLUETOOTH POWER-OFF

Connecting a Samsung TV via Bluetooth
When a TV is connected using Bluetooth, you can hear TV sound without the hassle of cabling. (Only one TV can be connected at a time)

Precondition

When connecting to a new BT device, make sure it is within 1 m distance.
While in wireless Group Play or Stereo mode, the Sound Tower cannot search for a TV via Bluetooth.
If the Samsung TV doesn’t support “Easy Connection”, ”SEARCHING TV” mode can not connect to a TV. Set your Sound Tower to “BT PAIRING” mode and connect the Samsung TV.

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-26

Press and hold (Source) for more than 5 seconds on remote control or top panel then Sound Tower will start to search for the Samsung TV. Lighting bar will blink white once and then blink cyan, The “PAIRING” LED will slowly blink.
(Or, when the wired Stereo Group mode connection is complete, the “SEARCHING TV” mode is automatically activated.)
If Samsung TV has connected with Sound Tower before, Samsung TV will be connected without popup.
Sound from the TV will be heard once the Sound Tower connects via Bluetooth.
If Sound Tower can not find any Samsung TV within 5 minutes, Sound Tower will terminate
“SEARCHING TV” mode and turn to “BT PAIRING” mode. If any Samsung TV is found, the Sound Tower will request connection to the TV.

NOTES

To stop searching for a Samsung TV, turn off the Sound Tower or press the (Source) or PAIRING button.
Sound Tower does not support multi connection if Samsung TV is connected.
While Samsung TV is connected, Sound mode is PARTY and SOUND MODE button is not available.
While Samsung TV is connected, Sound Tower APP can not connect with Sound Tower.
Connection popup may not be displayed according to TV spec, you can try pressing the PAIRING button on the rear panel of sound tower. On your Samsung TV, select “[AV] MX-ST9B Series” from the list that appears.
You can select and connect directly from the Bluetooth speaker list on your TV when the connection pop-up does not appear on your TV.
When the Sound Tower is connected to your TV by Bluetooth connection, the video on the TV and audio from the Sound Tower may not be synchronized because the distance between the Sound Tower and the TV is too far.

**CONNECTING A USB STORAGE DEVICE

**

You can play music files located on USB storage devices through the Sound Tower. SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-27

Connect a USB storage device to the USB jacks on your Sound Tower.
Press the (Source) button on the top panel or USB button of remote control, and then select “USB”.
The USB indicator on the top panel is solid and when the files on the USB are read, the Lighting LED will blink blue. After reading the music file, the sound tower will automatically play the music.
The lighting LED blinks white once when pressing the button(TEMPO+/-, Repeat, FOLDER UP/DOWN, Play/Pause, Skip) on remote control.
Using with the Sound Tower App will provide a better experience.

CAUTION

DO NOT connect microphone dongle to the USB port, it may damage the Sound Tower.

NOTES

This product only supports USB storage devices that are formatted in the FAT and FAT32 file system.
This product does not support HDD storage or storage on mobile devices.
A maximum of 999 files can be played via USB storage device.
A maximum of 256 folders can be read via USB storage device.
The Sound Tower automatically turns off (Auto Power Down) if USB device is not connected, playback stopped, or there is no input for more than 18 minutes
USB source does not support wireless Stereo and Group Play mode.

Supported Audio Formats

File Extension	Audio Codec	Sampling Rate	Bit Rate

*.mp3

*.aac

*.wav

| PCM/LPCM/ IMA_ADPCM| ****

8 kHz ~ 192 kHz

| ****

< 5 Mbps

*flac| –| 8 kHz ~ 192 kHz| < 5 Mbps

NOTES

This product does not support WMA Professional codec.
The above table shows supported sampling rates and bit rates. Files in formats that are not supported will not play.
AAC files only support the ADTS native format.

Software Update

Samsung may offer updates for the Sound Tower’s system firmware in the future.
If an update is offered, you can update the firmware by connecting a USB device with the firmware update stored on it to the USB2 port on your Sound Tower. For more information about how to download update files, go to the Samsung Electronics website at www.samsung.com/us/support/. Then, enter or select the model number of your Sound Tower, select the Software & Apps option, and then Downloads. Note that the option names can vary.

NOTE

If the upgrade takes more than 10 minutes, it means the upgrade process is stuck, Please unplug the power cord Wait until the sound tower is powered off and plug it back in again. Next, make sure the USB device is in the USB2 port. Then, wait 1 minute, and the sound tower will automatically restart, and then wait until the upgrade is complete.

Connecting an Optional Microphone
You can output your voice from the system by connecting a dynamic microphone with a normal plug. SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-28

Open the rear panel cover.
Turn the MIC1/2, VOL1/2 & ECHO1/2 knob to MIN to reduce the microphone level.
Connect an optional microphone to the MIC jack on the unit.
Adjust the volume using the MIC “VOL1/2” knob.
Adjust the Effect of the echo using the MIC “ECHO1/2” knob.
Speak or sing into the connected microphone.

NOTES

Microphone is not supplied.
When using the wireless Group Play or stereo mode function, sound from the microphone is only output from the system to which the microphone is connected.
There may be distortion or noise caused by the quality of the microphone that is connected.

USING THE REMOTE CONTROL

How to Use the Remote Control

SAMSUNG MX-ST90B-Sound-Tower-High-Power-Audio-1700W-
FIG-29 SAMSUNG MX-
ST90B-Sound-Tower-High-Power-Audio-1700W-FIG-31

How to use Sound Mode

Your Sound Tower provides predefined equalizer settings that are optimized for particular music genres.

Press the SOUND MODE button on the Remote control.
Each time you press the SOUND MODE button, the Sound Tower cycles through the available sound effects: PARTY, STANDARD, HIPHOP, EDM, ROCK, LATIN, HOUSE or REGGAE.

NOTES

Default sound mode is PARTY.
When turned off, press and hold the button on product or remote control for more than 5 seconds to turn on in the default Sound Mode setting.

How to use DJ Effect

The DJ Effect function lets you add DJ sound effects to your music. The level of each effect is adjustable.

Press the DJ button on the Remote control.
Each time you press the DJ button, the Sound Tower cycles through the available DJ Effects:
- NOISE: Create white noise mixed with the original sound through the filter and output.
- FILTER: Creates an effect similar to the sound of only treble or bass.
- CRUSH: Creates an effect that makes the original sound sharper.
- CHORUS: Creates an effect similar to a singing chorus.
- WAHWAH: Creates a ‘Wah~ Wah~’ effect.
- DJ EFFECT OFF: Turns off the DJ Effect.
Press the EFFECT + or EFFECT – buttons to raise or lower the level of each of the DJ sound effects from -15 to +15.

USING THE SAMSUNG SOUND TOWER APP

Install Samsung Sound Tower App
To control this product with your Smart Device and the Samsung Sound Tower app, download the Samsung Sound Tower App from the Google Play Store or Apple App Store, and install it on your Smart Device.

Using the Samsung Sound Tower App
You can control the system more flexibly and enjoy it in new ways using the App.

Precondition

This function may not be supported, depending on the mobile device.
App cannot be used when connecting with Samsung TV.
This function is compatible with Apple mobile devices running iOS 11.0 or later.
This function is compatible with Android mobile phone devices running Android OS 8.0.
App cannot be used when using Bluetooth multi connection.

Download the Samsung Sound Tower App from the Google Play Store or Apple App Store, and install it on your Smart Device.
Turn on the Sound Tower app on your mobile device.
A connection is established between the mobile device and Sound tower via Bluetooth.
Play audio from the mobile device through the Sound tower

What you can do with Samsung Sound Tower App

Balance the sound using preset EQs or custom EQs.
Change the sound effect using DJ EFFECT.
Configure the various settings for the system.
Change the light effect by preset or custom.
Adjust the Volume.
Switch source

NOTES

To use this function, update the Sound tower app to the latest version. The function may not be supported, depending on the app version.
The Sound tower app may not work if there are devices near the Sound tower that cause radio interference such as electric devices. Make sure devices that may cause radio interference are placed at a sufficient distance away from the Sound tower.
If the sound tower app doesn‘t work:
- Reboot the mobile device.
- Update the Sound Tower app to the latest version.
- Reinstall the Sound Tower app after uninstalling.
- Update the phone system version.

TROUBLESHOOTING

Refer to the table below if this product does not function properly.

Sound Tower does not turn on

Power cannot be turned on via remote control or mobile Party Audio App, Remove the power plug, after a while plug it in again, Press the POWER button to turn on the Sound Tower.
Sound Tower works erratically

Remove the power plug, after a while plug-in it again, Press the POWER button to turn on the Sound Tower.
Power cycle the external device and try again.
If there is no signal, the Sound Tower automatically turns off after a certain period of time. Press the POWER button to turn on the Sound Tower.

If the remote control does not work

Point the remote directly at the Sound Tower.
Replace the batteries with new ones.

Sound Tower does not output any sound via Bluetooth

The volume of the Sound Tower is too low or muted.
Press the volume up button to increase the volume.
When any external device (STB, Bluetooth device, mobile device, etc.) is connected, Increase the volume of the external device.
For sound output of the TV, select Sound Tower. (Samsung TV: Home Menu → Settings → All Settings → Sound → Sound Output → Select Sound Tower).
Remove the power plug, after a while plug it in again, Press the POWER button to turn on the Sound Tower.
When connecting a new device, switch to “BT PAIRING” for connection. (Press and hold the PAIRING button on the remote control for more than 5 seconds to enter the “BT PAIRING” mode, or single-click the PAIRING button on the rear panel.)

Sound Tower does not connect via Bluetooth

If the Sound Tower is connected to another device, disconnect that device first to switch the device.
Enable the Bluetooth pairing function of the Bluetooth device and Sound Tower. ; It is recommended to move the Sound Tower closer to your Bluetooth device within 1 meter.
Remove the power plug, after a while plug-in it again, Press the POWER button to turn on the Sound Tower.

Sound drops out when connected via Bluetooth

Some devices can cause radio interference if they are located too close to the sound tower. e. g. microwaves, wireless routers, etc.
If your device that is connected via Bluetooth moves too far away from the Sound Tower. Move the device closer to the Sound Tower.
If there are obstacles between the Sound Tower and your Bluetooth device, remove or avoid the obstacles.
There may be sound drop when connected to Samsung TV, please refer to page15
“Using Stereo Mode of Samsung TV” steps to reconnect the Samsung TV.
The recommended operating distance between Sound Tower and the BT device is less than 10 meters

There is severe hum, noise, or distorted sound when connected via Bluetooth

If there are obstacles between the Sound tower and your Bluetooth device, remove or avoid the obstacles.
Some devices can cause radio interference if they are located too close to the sound tower. e. g. microwaves, wireless routers, etc.

The PAIRING button is not working.

Try again after disconnecting the wireless Group Play or Stereo mode connection.

The USB device is not recognized.

Switch the source to USB1/USB2 by pressing the source button, plug-in the USB device to correct port(USB1/USB2).
Turn off the sound tower, turn on the sound tower, reconnect the USB device.
You may be using an unsupported USB device. The USB storage device must be formatted in FAT or FAT32.

Files in USB device cannot be played back.

Switch the source to USB1/USB2 by pressing the source button, plug-in the USB device to correct port(USB1/USB2).
You may using an unsupported USB device.

The USB storage device must be formatted in FAT or FAT32.

The file format may not supported. Sound tower only supports MP3,WMA,AAC,WAV and FLAC file format.
Turn off the sound tower ,turn on the sound tower, reconnect the USB device.
Files that are encrypted or protected by passwords cannot be played back. The connected USB device cannot be charged.
USB port is only for USB storage device playback.

Sound Tower does not output any sound via AUX.

Make sure the external device is in AUX output mode, and make sure sound tower switch to AUX1 or AUX2 source.
Make sure the AUX cable is connected to AUX1 or AUX2 securely.
The volume of the Sound Tower is too low or muted. Adjust the volume.
When any external device (STB, Bluetooth device, mobile device, etc.) is connected, adjust the volume of the external device.
Remove the power plug, after a while plug-in it again, Press the POWER button to turn on the Sound Tower

Stereo mode connection is not working.

The Add Stereo button does not work in Group Play mode, disconnect the wireless Group Play mode and try Stereo mode connection again.

I want to switch the HOST (MAIN) system to the other in wireless Group Play orStereo Group connection.

Disconnect Group Play mode, select the Speaker which you want make to HOST first, and then use the Group LED to connect the other speakers.
With Stereo Group mode, MAIN is fixed. You can not change other sound towers to MAIN.

I can’t connect a SUB to Group play.

After 1 hour, the HOST will block any additional SUB from being added. Press the GROUP PLAY button on HOST, the SUB can be reconnected.

I cannot make a “Wireless/ Wired Group/ Add Stereo/ Bluetooth” connection.

It is recommended to make a “Wireless/ Wired Group/ Add Stereo/ Bluetooth” pairing within 1 meter from the system.
Sound Tower can not connect to Samsung TV when using Wireless add Stereo mode.

MIC is not working?

Adjust the VOL knob of the rear panel.
MIC only works on the connected sound tower in the group mode, does not work on both sound towers.
Try disconnecting and reconnecting the Microphone again

BT power on not working.

Remove the power plug, after a while plug-in it again, Press the POWER button to turn on the Sound Tower.

How to use the water resistant function?

Water resistance can be met when AC power cord is plugged-in, but make sure that the caps are closed completely. Product cannot knocked over to ensure it is water resistant.

I cannot change wireless Stereo mode to wired Stereo mode.

Make sure the HOST(main) system is in Bluetooth source.

I cannot change the source.

The SUB can’t change the source in Stereo mode.

If the sound tower app doesn‘t work.

Reboot the mobile device.
Update the Sound Tower app to the latest version.→ Reinstall the Sound Tower app after uninstalling.→ Update the phone system version.
This function is compatible with Apple mobile devices running iOS 11.0 or later.
This function is compatible with Android mobile phone devices running Android OS 8.0 or later

The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Samsung Electronics Co., Ltd. is under license. Other trademarks and trade names are those of their respective owners.

Qualcomm aptX is a product of Qualcomm Technologies, Inc. and/or its subsidiaries. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries. aptX is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries.

[ENERGY STAR]
ENERGY STAR qualified model only

Your Samsung product is ENERGY STAR qualified in its factory default setting. Change to certain features, settings and functionality in this product can change the power consumption, possibly beyond the limits required for ENERGY STAR qualification.
Environmental Protection Agency and Department of Energy. ENERGY STAR is a joint program of the Government agencies, designed to promote energy efficient products and practices.

Refer to www.energystar.gov for more information of the ENERGY STAR Program.

ENERGY STAR qualified model only (Applicable to Thin Client models only)
As an ENERGY STAR® Partner, SAMSUNG has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

The ENERGY STAR Program has been to reduced greenhouse gas emissions and save energy through voluntary labeling.
Power management setting of this product have been enabled by default, and have various timing setting from 1 minutes to 5 hours.
The product can wake with a button press on the chassis from sleep mode.

ENERGY STAR qualified model only (The other models)

As an ENERGY STAR Partner, Samsung has determined that this product or product models meets the ENERGY STAR guideline for energy efficiency.

OPEN SOURCE LICENCE NOTICE

To send inquiries and requests regarding open sources, contact Samsung via Email
(oss.request@samsung.com).

IMPORTANT NOTES ABOUT SERVICE

Figures and illustrations in this User Manual are provided for reference only and may differ from actual product appearance.
An administration fee may be charged if either:
- a. An engineer is called out to your home at your request and there is no defect in the product.
- b. You bring the unit to a repair centre and there is no defect in the product.
You will be advised of the amount of the administration fee before any work is done or a home visit is made.

SPECIFICATIONS AND GUIDE

Specifications

Model Name	MX-ST90B

USB1/USB2

Rated Output power

| ****

1700 W

Overall Power Consumption| 150W
WIRELESS DEVICE OUTPUT POWER

BT max transmitter power

| ****

100 mW at 2,4 GHz – 2,4835 GHz

---|---
Overall Standby Power Consumption (W)| 2.0W
Bluetooth

Port deactivation method

| Press and hold the BASS button for more than 5 seconds to turn off Bluetooth Power function.

Hereby, Samsung declares that this radio equipment is in compliance with Directive 2014/53/EU and the relevant UK statutory requirements.
The full text of the declaration of conformity is available at the following internet address:
http://www.samsung.com go to Support and enter the model name.
This equipment may be operated in all EU countries and in the UK.

[Correct disposal of batteries in this product]

(Applicable in countries with separate collection systems)
This marking on the battery, manual or packaging indicates that the batteries in this product should not be disposed of with other household waste at the end of their working life. Where marked, the chemical symbols Hg, Cd or Pb indicate that the battery contains mercury, cadmium or lead above the reference levels in EC Directive 2006/66.
If batteries are not properly disposed of, these substances can cause harm to human health or the environment.
To protect natural resources and to promote material reuse, please separate batteries from other types of waste and recycle them through your local, free battery return system.

Correct Disposal of This Product (Waste Electrical & Electronic Equipment)

(Applicable in countries with separate collection systems)
This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling.

Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal.

For information on Samsung’s environmental commitments and product specific regulatory obligations e.g. REACH, WEEE, Batteries, visit:
www.samsung.com/uk/aboutsamsung/sustainability/environment/our- commitment/data/