Astell&kern SR15 User Manual

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SR15

INSTRUCTION BOOK

User Guide

CONTENTS

Getting Started

Package Contents

Product Overview

Power Management

Charging

Connections

Firmware Updates

_01

Using the Device

Basic operations

Home Screen

Notification Panel

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

Miscellaneous

Safety Pre-Cautions

Troubleshooting

Certifications

Registered Trademarks

Disclaimers

Specifications

_03

_02

User Guide

Package Contents

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

Protective FilmSR15

microSD Card

Slot Cover

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 in the product by default.

5-Pin Micro USB 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 since 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].

5-Pin Micro

USB Cable

Quick Start Guide & Warranty Card

Getting Started

User Guide

Product Overview

The appearance of the product, as well as the printed and engraved information, may vary depending on the model.

3.5mm Unbalanced Port

Micro USB Port

2.5mm Balanced Port

Previous/ Rewind

Play/Pause

Next/ Fast-Forward

microSD Card Slot

Micro USB Port: - DC Power symbol.

For charging and data transfer.

3.5mm Unbalanced Port: - 3.5mm Unbalanced Port symbol. For audio output, connect earphones or headphones that utilize a 3.5mm 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. Press - Turns the screen on and off. Press and Hold - Turns the device on or off.

Power

Getting Started

Volume

LCD Touchscreen

Home Button

User Guide

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 the current song.

microSD Card Slot: - microSD Card Slot symbol. Insert a microSD card to access its files.

Volume: Turn the wheel to adjust the playback output volume level.

LCD Touchscreen: Display screen with touch control features.

Home Button: Press to return to the Home Screen.

Getting Started

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 41)

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 Off]. (See Page 41)

Reset Function

1. In cases 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

User Guide

Charging

Charging Via Computer Connection

1. The device will charge automatically when connected to a computer via the 5-Pin Micro USB cable.

Charging Time: up to 8 hours (fully discharge, power off) When charging via computer connection, the charging time may vary depending on whether the device is turned on or off. Depending on computer specifications, the device may charge only when the computers is turned on. Some computerss in power-saving mode may not charge the device. The built-in battery will gradually lose capacity over time with repeated charging/discharging. Do not use a cable other than the 5-Pin Micro USB cable supplied with the device. Doing so may cause malfunctions.

Charging Via USB Wall Adapter

1. Commercially available 5V 2A output adapters may be used for charging.

Charging Time: Up to 4 hours 30 minutes (Fully discharged, power off). Maximum rated output adapter recommended is 5V 2A. Using a higher rated or fast-charge adapter that supports varying voltages (5V, 9V and 12V) is not recommended, may not charge the device and may cause malfunctions

Getting Started

User Guide

Connections

3.5mm Unbalanced Port

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

2.5mm Unbalanced Port

Connect earphones or headphones to the 2.5mm Balanced port.

Connecting to 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

User Guide

Connecting to a Computer

1. Turn on the device and your computer.

2. Use the 5-Pin Micro USB 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 Pages 33-35)

For an optimal connection, quit any unnecessary programs before connecting the device to the computer. Do not use cables other than the 5-Pin Micro USB cable provided with the device. Doing so may cause malfunctions. Mac users need to download and install Android File Transfer from the Astell&Kern website. [http://www.astellnkern.com > Support > Download] For both Windows and MAC, the device only works with USB 2.0.

Getting Started

User Guide

Disconnecting from the Computer

1. Disconnect the 5-Pin Micro USB cable after the transfer between the device and computer is complete.

Disconnecting the device from the computer during an operation (e.g., file transfer) may corrupt data on the device.

Copy Files (or 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 5-Pin Micro USB cable is properly connected. Turning off the device, computer or disconnecting the 5-Pin Micro USB 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

User Guide

Delete Files (or Folders) from the Device

1. Select the file/folder to delete, right-click the mouse, and select [Delete].

2. Select [Yes] in the [Confirm File/Folder Deletion] window to delete the selected files/folders.

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.

Getting Started

User Guide

Recommended microSD Cards

SanDisk, Transcend

Maximum Capacity: 400GB

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.

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.

Getting Started

User Guide

Firmware Updates

Wi-Fi Update / OTA (Over-the-Air)

1. Connect to a wireless network.

2. When a new firmware version is available, the screen will display a Firmware Update Guide window.

3. Select [Update].

4. Follow the on-screen instructions to to proceed with the firmware update.

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.) Moving to another screen during a file download will cancel the download. 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 upgrade, download the firmware update again through [Menu - Settings - Update - System].

Getting Started

User Guide

Basic operations

LCD Touchscreen

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

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.

Main Menu

1. From the left edge of the touchscreen, swipe your finger right to display the Main 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

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

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

+ 39 hidden pages