INSTRUCTION BOOK
SE100
User Guide
Package Contents
Product Overview
Power Management
Charging
Connections
Firmware Updates
02
03
05
06
07
12
Getting Started
_01
Basic Operations
Home Screen
Notification Bar
Music Store
AK CONNECT
Listening to Music
Playlist Management
USB DAC Installation
How to Use USB Audio
CD Ripping
Settings
Connecting to Wi-Fi
Using Bluetooth
Equalizer Setup
13
17
19
22
23
29
32
35
36
37
39
44
45
47
Using the Device
_02
Safety Pre-Cautions
Troubleshooting
Copyright
Certifications
Registered Trademarks
Disclaimers
Specifications
50
52
53
54
55
56
57
Miscellaneous
_03
CONTENTS
User Guide
Contents may be changed without prior notice to improve the
performance or quality of the product.
Package
Contents
Getting Started 02
Protective Film: Protects the product’s screen.
microSD Card Slot Cover: The cover is used to protect the
microSD card slot when not in use. It is installed on the
product by default.
USB Type-C Cable: For charging and data transfer.
Quick Start Guide: Basic overview of device functionality.
Warranty Card: Provides warranty details for your device.
Maintain a copy of this card as it may be required for future
technical support requests.
microSD Card Slot Cover: The cover is used to protect the
microSD card slot when not in use. It is installed on the
product by default.
User Guide: The User Guide can be downloaded from the
Astell&Kern website.
[http://www.astellnkern.com/ > Support > Download].
Quick Start Guide
& Warranty Card
USB Type-C CablemicroSD Card
Slot Cover
Protective FilmSE100
3.5mm Unbalanced Port: - 3.5mm Unbalanced Port symbol.
Connect earphones or headphones for audio output that
utilize a 3.5mm jack.
2.5mm Balanced Port: - 2.5mm Balanced Port symbol.
Connect earphones or headphones for audio output that
utilize a 2.5mm jack.
microSD Card Slot: - microSD Card Slot symbol.
Insert a microSD card to access its files.
USB Type-C Port: - DC Power symbol.
For charging and data transfer.
Power: - Power symbol.
Short Press - Turns the screen on or off.
Press and Hold - Turns the device on or off.
Getting Started
03
User Guide
The appearance of the product, as well as the printed and
engraved information, may vary depending on the model.
Product
Overview
Previous/Rewind
Next/
Fast-Forward
Play/Pause
3.5mm Unbalanced Port
Power
2.5mm Balanced Port
LCD
Touchscreen
Home Button
Volume
microSD Card Slot
USB Type-C Port
User Guide
Getting Started
04
Volume: Turn the wheel to adjust playback volume.
LCD Touchscreen: Display screen with touch control features.
Previous/Rewind:
Short press - Play the previous song or restart the current
song.
Press and hold - Rewind the current song.
Play/Pause: Play or pause the current song.
Next/Fast-Forward: Short press - Play the next song.
Press and hold - Fast-forward current
song.
Home Button: Press to return to the Home Screen.
Getting Started
05
User Guide
Resetting the device will not affect stored data or time settings. Do
not use the reset function while the product is in use. Doing so may
corrupt the data on the device.
This device has an automatic timeout feature to save battery power.
The screen will turn off if there is no user input during the period
defined in [Menu - Settings - Timer Settings - Screen Off]. (See Page
42)
Reset Function
1. In case of an unexpected device failure or freeze, press and
hold [Power] for 7 seconds to force a shutdown. The device
can then be restarted after the shutdown is complete.
Turning the Screen On/Off
1. While the screen is on, press the [Power] button to turn
off the screen.
2. Press [Power] button again to turn it on.
This device has an automatic shutdown feature to save battery
power. The device will turn off if there is no user input during the
period defined in [Menu - Settings - Timer Settings - Auto Power
Off] (See Page 42)
Powering the Device On/Off
1. Press and hold the [Power] button to turn on the device.
2. While the device is on, press and hold the [Power] button
to shut down the device. A confirmation message will
appear.
3. Press [OK] to turn off the device.
Power
Management
User Guide
Getting Started
06
Computer may need to be turned on to start charging depending on
computer specifications.
When charging via computer connection, the charging time may
vary depending on whether the device is turned on or off.
Some computers in power-saving mode may not charge the device.
The built-in battery will gradually lose capacity over time with
repeated charging/running-down.
Do not use cables other than the USB Type-C cable provided. Doing
so may cause malfunctions.
Charging via Computer Connection
1. Connect the USB Type-C cable to a computer to charge
the product.
Fast charging: Maximum 2 hours 20 minutes (Fully discharged,
Power-off, 9V 1.67A adapter) / Normal charging: Maximum 5 hours
(Fully discharged, Power-off, 5V 2A adapter)
A fast charger of 9V 1.67A may be used. Using a 12V adapter will not
charge the product and may cause malfunctions.
Charging via USB Wall Adapter
1. Commercially available 9V 1.67A adapters may be used for
charging.
Charging
Getting Started
07
User Guide
Connections
3.5mm Unbalanced Port
1. Connect earphones or headphones to the 3.5mm
unbalanced port.
2.5mm Balanced Port
1.
Connect earphones or headphones to the 2.5mm balanced port.
OR
OR
Balanced Audio Device
1. Connect to an external audio device by using the 3.5mm
unbalanced port and 2.5mm balanced port.
Unbalanced
Port (Ground)
Balanced Port (LR)
Getting Started
08
User Guide
Connecting to Computer
1. Turn on the device and your computer.
2. Connect the device to your computer using the USB Type-C
cable and select one of the following settings on the device
[Menu - Settings - USB mode]
[Default] Media Device (USB Drive): Transfer files from a
computer to the device.
DAC Input: Listen to music on a connected computer
through the device. (See Page 36)
Mac users need to download and install Android File Transfer from
the Astell&Kern website. [http://www.astellnkern.com > Support >
Download]
For the best connection, close any unnecessary programs before
connecting the device to the computer.
Do not use cables other than the USB Type-C cable provided with the product.
Use USB 2.0 only on Mac.
Type-C-to-Type-C cable is recommended when connecting with a
MAC that supports Type-C port.
Windows XP users require Service Pack 2 and Windows Media
Player 10 to be installed for the computer to recognize the USB
device. Download Windows Media Player and required Service
Packs from the Microsoft website. http://www.microsoft.com
Getting Started
09
User Guide
Copy Files (Folders) to the Device
1. To copy files/folders from your computer, select the desired
files/folders and drag & drop them into the device folder.
Ensure the USB Type-C cable is properly connected.
Turning off the device or disconnecting the USB Type-C cable while
copying or moving files/folders may corrupt files or device memory.
File transfer speeds may be affected by the computer and/or the OS
environment.
Getting Started
10
User Guide
Delete Files (or Folders) from the Device
1. Right-click the desired file/folder, and then select [Delete].
2. Select [Yes] in the [Confirm File/Folder Deletion] window
to delete the selected files/folders.
Disconnecting from the Computer
1. Disconnect the USB Type-C cable after file transfer is
complete.
Disconnecting the device from the computer during a file transfer
may corrupt data on the device.
Getting Started
11
User Guide
Maximum Capacity: 400GB
Notes on Inserting a microSD Card
When inserting the microSD card, do not use excessive force.
This may cause damage to the device and the card.
Do not repeatedly insert/remove the microSD card.
If the card is improperly inserted, it may become stuck or cause
damage to the device.
Notes on removing a microSD card
Be sure to safely dismount and remove the microSD card from the
device. Not dismounting the microSD card before removal may
corrupt data on the microSD card and device.
Do not disconnect the microSD card during use. Doing so may
damage the microSD card, corrupt or delete data and cause the
device to malfunction.
Recommended microSD Cards
SanDisk, Transcend
Insert/Remove a microSD Card
1. Refer to the diagram and gently
insert a microSD card into the
microSD card slot.
2. To safely remove a microSD card,
select [Safely remove SD card]
from the Notification Bar or select
[Dismount microSD card] from
[Menu - Settings - System
Information].
3. Gently press the microSD card in
to unlock and release it from the
slot.
Getting Started
12
User Guide
For Wi-Fi connections, see Page 44.
The firmware update may not start if the battery level is too low. (A
minimum battery level of 20% is required for installation.)
Do not disconnect from the wireless network while downloading a
firmware update. Doing so may cause data corruption and/or
damage to system files.
If an error occurs or the notice in the Notification Bar disappears
during an update, download the firmware update again by accessing
[Menu - Settings - Update - System Update].
Wi-Fi Update / OTA (Over-the-Air)
1. Connect to a wireless network.
2. If a new firmware update is available, the screen will
prompt to download the new firmware.
3. Select [Update].
4. Follow the on-screen instructions to proceed with the
firmware update.
Firmware
Updates
Notes on Using microSD Cards
If the microSD card is not recognized or is not functioning
properly, format the card, preferably as a FAT32 partition.
You can reformat the card via computer or Settings - System Information
- Erase microSD Card. All contents will be erased and card will be
reformatted in FAT32.
Using cards other than the recommended microSD card may
cause issues.
A microSD card is not included in the product package. microSD
cards must be purchased separately.
User Guide
Using the Device
13
Basic
Operations
LCD Touchscreen
1. This device features an LCD touchscreen that allows you
to select options by touching the screen.
Use the touchscreen to access various features on the
device.
To prevent damage to the screen, do not use a sharp object or
excessive force.
Return to the Home Screen
Home Screen
1. Press [ ] to go to the Home Screen.
Using the Device
14
User Guide
Main Menu
1. From the left edge of the touchscreen, swipe your finger
right to display the Main Menu.
From the Home Screen, swipe your finger to the left, right,
up or down from any edge of the touchscreen to access display
menus. Each side of the Home Screen will activate a different
display menu.
Music files extracted using the AK CD-Ripper accessory that are
stored in the Ripping folder of the internal memory will be displayed
in the CD library menu.
Using the Device
15
User Guide
Notification Bar
1. From the top edge of the touchscreen, swipe your finger
down to display the Notification Bar.
View Current Playlist
1. From the right edge of the touchscreen, swipe your finger
left to display the Now Playing menu.
Using the Device
16
User Guide
View Play History
1. From the bottom edge of the touchscreen, swipe your
finger up to display the Play History menu.
Moving Up/Down on a List
1. Scroll through a list by dragging your finger up or down.
Using the Device
17
User Guide
Displays the Main Menu.
Displays current song information.
Indicates the song’s total duration.
Go to the last displayed menu list.
Add the current song to a playlist.
Song title information.
File name is displayed when ID3 tag
is unavailable.
Displays the artist and album info.
Menu
Details
Song Duration
Recent Menu
List
Add to Playlist
Title
Artist/Album
1
2
3
4
5
6
7
Home
Screen
9
1
4
6
7
8
3
11
15
14
18
5
2
16
17
13
12
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