Astell Kern SE300 Digital Audio Player Instructions

: June 14, 2024
: Astell&Kern

Table of Contents

SE300 Digital Audio Player
Product Information
Package Contents
Product Overview
- Product Usage Instructions
Power Management

SE300 Digital Audio Player

Product Information

The SE300 is a portable audio device that allows users to listen
to music and perform various functions. It features a 4.4mm
balanced port, a 2.5mm balanced port, a 3.5mm unbalanced
port/optical out terminal, a microSD card slot, a USB Type-C port,
and an LCD touchscreen for easy navigation. The device comes with a
leather case, a protective film, a USB Type-C cable, and a quick
start guide.

Package Contents

SE300 device
Leather case & protective film
microSD card slot cover
USB Type-C cable
Quick start guide & warranty card

Product Overview

The SE300 has various ports and buttons for different
functions:

4.4mm Balanced Port: For audio output using earphones or
headphones with a 4.4mm jack.
2.5mm Balanced Port: For audio output using earphones or
headphones with a 2.5mm jack.
Power: Press and hold to turn the device on or off.
Volume: Adjust the playback output volume level using the
wheel.
3.5mm Unbalanced Port/Optical Out Terminal: For audio output
using earphones or headphones with a 3.5mm jack. Music can also be
played back on an S/PDIF-capable external device via an optical
cable.
Previous/Rewind: Play the previous song or rewind the current
song.
Play/Pause: Play or pause the current song.
LCD Touchscreen: Display screen with touch control
features.
Next/Fast-Forward: Play the next song or fast-forward the
current song.
Home Button: Press to return to the Home Screen.
microSD Card Slot: Insert a microSD card to access its
files.
USB Type-C Port: For charging and data transfer.

Product Usage Instructions

Power Management

Powering the Device On/Off:

Press and hold the [Power] button to turn on
the device.
While the device is on, press and hold the
[Power] button to shut down the device. A
confirmation message will appear.
Press [OK] to turn off the device.

Note: The device has an automatic shutdown feature that turns it
off if there is no user input during the defined period in [Menu –
Settings – Timer Settings – Auto Power Off].

Turning the Screen On/Off:

To turn on the screen, press the [Power]
button.
To turn off the screen, press the [Power]
button again.

Note: The device may have additional power management features
and settings that can be accessed through the menu.

SE300
INSTRUCTION BOOK
User Guide

CONTENTS

Getting Started _01

Package Contents

02

Product Overview

03

Power Management

05

Charging

06

Connections

07

Firmware Updates

12

Using the Device _02

Basic Operations

13

Home Screen

17

Menu Category Screen

18

Main Menu Screen

20

Music Player Screen

21

Notification Bar

24

Using Open APP Service

27

AK CONNECT

28

AK File Drop

33

Listening to Music

35

Playlist Management

38

ReplayGain

41

USB DAC Installation

42

How to Use USB Audio

43

CD Ripping

44

AK CD-Player

46

Car Mode

47

Bookmark Function

48

Favorites Function

49

Settings

50

Connecting to Wi-Fi

58

Using Bluetooth

59

Equalizer Setup

62

Miscellaneous _03

Precautions

64

Troubleshooting

66

Copyright

67

Certifications

68

Registered Trademarks

70

Disclaimers

71

Specifications

72

User Guide

Package Contents

Contents may be changed without prior notice to improve the performance or quality of the product.

SE300

Leather Case & Protective Film

microSD Card Slot Cover

USB Type-C Cable

Quick Start Guide & Warranty Card

Leather Case & Protective Film: Protect the device and its screen. microSD Card Slot Cover: The cover is used to protect the microSD card slot when not in use. It is installed in the product by default. USB Type-C Cable: Please use a separate conversion adapter when connecting to a PC that cannot connect Type C. (Conversion adapters are not included in the component.) 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. User Guide: The User Guide can be downloaded from the Astell&Kern website. [http://www.astellnkern.com > Support > Download] Getting Started 02

User Guide

Product Overview

The appearance of the product, as well as the printed and engraved information, may vary depending on the model.
4.4mm Balanced Port 2.5mm Balanced Port

Power 3.5mm Unbalanced Port / OPTICAL OUT Terminal

Previous/Rewind Play/Pause

LCD Touchscreen Volume

Next/Fast-Forward

Home Button

microSD Card Slot

USB Type-C Port Getting Started 03

User Guide

4.4mm Balanced Port:

– 4.4mm Balanced Port symbol.

For audio output, connect earphones or headphones that

utilize a 4.4mm jack.

2.5mm Balanced Port:

– 2.5mm Balanced Port symbol.

For audio output, connect earphones or headphones that

utilize a 2.5mm jack.

Power: – Power symbol.

Short press – Turns the screen on or off.

Press and hold – Turns the device on or off.

Volume: Turn the wheel to adjust the playback output

volume level.

3.5mm Unbalanced Port / Optical Out Terminal:

– 3.5mm Unbalanced / S/PDIF Port symbol.

For audio output, connect earphones or headphones that

utilize a 3.5mm jack. Music can be played back on a S/PDIF

-capable external device via an optical cable.

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.

LCD Touchscreen: Display screen with touch control features.

Next/Fast-Forward:

Short press – Play the next song.

Press and hold – Fast-forward the current song.

Home Button: Press to return to the Home Screen.

microSD Card Slot: – microSD Card Slot symbol.

Insert a microSD card to access its files.

USB Type-C Port: For charging and data transfer.

Getting Started 04

User Guide

Power Management

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.
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 56)

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 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 Timeout]. (See Page 56)

Reset Function
1. In case of 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.
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.

Getting Started 05

User Guide

Charging

Charging via USB Wall Adapter
1. Commercially available 9V 1.67A output adapters may be used for charging.
Fast charging time: Approx. 3.5 hours (Fully discharged, Power-off, 9V 1.67A adapter) / Normal charging: Approx. 5.5 hours (Fully discharged, Power-off, 5V 2A adapter) The manufacturer shall not be responsible for problems caused by the use of adapters that do not adhere to the recommended specifications.

Getting Started 06

User Guide

Connections

3.5mm Unbalanced Port 1. Connect earphones or headphones to the 3.5mm
unbalanced port.
OR

2.5/4.4mm Balanced Port
1. Connect earphones or headphones that support a 2.5mm or 4.4mm headphone jack to the 2.5mm or 4.4mm balanced port.
OR

Getting Started 07

User Guide

Connecting to a Computer
1. Turn on the device and your computer. 2. Use the USB Type-C cable to connect the device to a computer
in accordance with settings in [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 42)

Mac users need to download and install Android File Transfer from the Astell&Kern website. [http://www.astellnkern.com > Support > Download] For an optimal connection, quit any unnecessary programs before connecting the device to the computer. Do not use cables other than the USB Type-C cable provided with the device. Doing so may cause malfunctions. Use USB 2.0 only on Mac. When a USB connection is established while playing a DSD or DXD file, a mode selection pop-up box will appear with the following options:
External device connection: Connect the player to the computer to transfer files, USB DAC for audio playback or CD Ripper connection. Charge device: Charge the device.

Getting Started 08

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, computer 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 09

User Guide

Delete Files (or Folders) from the Device
1. Select the file/folder to delete, right-click the mouse, 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 the transfer between
the device and computer is complete.
Disconnecting the device from the computer during a file transfer may corrupt data on the device.
Getting Started 10

User Guide

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, on the Home Screen, select [Safely remove SD card] from the Notification Bar or select [Unmount SD card] from [Menu – Settings – System Information].
3. Gently press the microSD card in to unlock and release it from the slot.

Recommended microSD Cards
SAMSUNG, SANDISK
Maximum Capacity: 1TB Notes on Inserting a microSD Card
Do not force the microSD card into the slot. Doing so may cause malfunction of the product and damage to the card. Do not repeatedly insert/remove the microSD card. If not inserted properly, the microSD card may cause product malfunctions and may become lodged in the product. Notes on Removing a microSD Card Be sure to safely remove the microSD card from the device. Not following the proper procedure may corrupt data and cause serious damage to the both the card and device. Do not remove the microSD card during use. Doing so may cause malfunction, delete data and damage the microSD card.
Getting Started 11

User Guide

Notes on Using a microSD Card If the microSD card is not recognized or functions improperly, format the card, preferably in the FAT32 system. Using cards other than the recommended microSD card types may cause malfunctions. A microSD card is not included in the product package. Please purchase separately.

Firmware Updates

Wi-Fi Update / OTA (Over-the-Air)
1. Connect to a wireless network. 2. If a new firmware update is available, the screen will
display a Firmware Update Guide window. 3. Select [Update]. 4. Follow the on- screen instructions to proceed with the
firmware update.

For Wi-Fi connections, see Page 58. The firmware update may not start if the battery level is too low. (A minimum battery level of 20% is required.) Do not disconnect from the wireless network while downloading the update file. Doing so may cause data corruption and/or damage to the system. If an error occurs or the notice in the Notification Bar disappears during an update, download the firmware update again through [Menu – Settings – Update – System]. Moving to another screen during a file download will cancel the download.

Getting Started 12

User Guide

Basic

LCD Touchscreen

Operations 1. This device features an LCD touchscreen that allows you
to perform operations by touch.

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 1. Press [ ] at any time to return to the Home Screen.

Home Screen
Using the Device 13

User Guide

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.

Menu Category Screen
1. Swipe the screen in the [right left] direction, or press [ ] in the upper right to move to the Menu Category Screen.

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 14

User Guide

Notification Bar
1. From the top edge of the touchscreen, swipe your finger down to display the Notification Bar.

Using the Device 15

User Guide

Mini Player Screen
1. Swipe up or tap on the Mini Player Screen to expand to the Music Player Screen.

2. Swipe down or press [ ] in the upper left to collapse the Music Player Screen.

Using the Device 16

User Guide

Home

1

3

Screen