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Astell & Kern SR15 User Manual

Astell & Kern SR15
56 pages
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INSTRUCTION BOOK
SR15
User Guide
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Astell & Kern SR15 Specifications

Display IconDisplay
display size3.3 inch
display resolution480 x 800
Audio IconAudio
supported audio formatsWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
sampling ratePCM: 8kHz-192kHz, DSD Native: DSD64, DSD(DSD to PCM): DSD128
output levelUnbalanced 2.0Vrms / Balanced 4.0Vrms
Power IconPower
battery capacity3, 150mAh
battery voltage3.7V
battery typeLi-Polymer
Audio Performance IconAudio Performance
frequency response±0.030dB (20 Hz~20 kHz) Unbalanced / ±0.024dB (20Hz~20kHz) Balanced
signal to noise ratio122dB @ 1kHz, Unbalanced / 122dB @ 1kHz, Balanced
crosstalk137dB @ 1kHz, Unbalanced / 131dB @ 1kHz, Balanced
Memory IconMemory
built-in memory64GB
external memory supportmicroSD (Max 400GB)
memory typeNAND
Connectivity IconConnectivity
wi-fi802.11 b/g/n (2.4GHz)
bluetoothV4.1 (A2DP, AVRCP, aptX HD)
usb inputUSB Micro-B
Weight and Dimensions IconWeight and Dimensions
dimensions2.26” (57.5mm) x 3.92” (99.7mm) x 0.63” (16.1mm)
weight5.6oz(159g)

Summary

Package Contents

Included Accessories

Lists items included in the box such as cables and guides.

Product Overview - Ports and Controls

Device Ports and Controls

Identifies physical connections and operational buttons on the device.

Product Overview - Interface Elements

Touchscreen and Navigation Elements

Explains the touchscreen interface and home button functionality.

Power Management

Device Powering and Reset

How to turn the device on/off, manage screen power, and reset.

Auto Power Off and Screen Timeout

Settings for automatic shutdown and screen turn-off.

Charging the Device

Charging Methods

Instructions for charging via computer or a USB wall adapter.

Audio Connections

Connecting Headphones and External Devices

How to connect headphones and other audio equipment.

Computer Connectivity

Connecting for File Transfer or DAC Use

Steps for connecting to a computer for file transfer or DAC use.

File Management

Copying and Deleting Files

Procedures for managing music files on the device.

Disconnecting from Computer

Proper procedure for safely disconnecting the device from a computer.

microSD Card Management

Inserting and Removing microSD Cards

How to insert and safely remove microSD cards.

microSD Card Usage

Recommended Cards and Usage Notes

Information on compatible cards and usage precautions.

Firmware Updates

Wi-Fi Update Process

Guide for updating the device's firmware wirelessly.

Basic Device Operations

Touchscreen Navigation

Using the touch display for device interaction and access.

Interface Navigation Methods

Accessing Main Menu and Notifications

Swiping gestures to open the main menu and notification bar.

Playlist and History Navigation

Viewing Playlists and History

Swiping to access the current playlist and play history.

List Navigation

Scrolling and Sorting Lists

How to scroll through lists and sort music by criteria.

Home Screen Interface

Home Screen Components Overview

Identifies numbered elements on the Home Screen.

Home Screen Details

Description of Home Screen Elements

Detailed explanations for each numbered element on the Home Screen.

Notification Bar

Notification Bar Icons Explained

Explains the function of icons in the notification area.

Notification Bar Customization

Managing Quick Settings Buttons

How to add, remove, or reorder quick settings buttons.

Music Store Access

Streaming and Purchasing Music Online

Connecting to Wi-Fi to access music stores for streaming/purchases.

AK Connect Setup

MQS Streaming Server Setup

Installing and configuring the MQS server for network streaming.

Linking Devices and Libraries

Connecting the player to music libraries and speakers via AK Connect.

AK Connect Operations

Connecting Libraries and Speakers

Steps to connect to libraries/speakers using AK Connect.

AK Connect Music Management

Streaming and Downloading Music

How to stream and download music from your library.

AK Connect Usage Examples

Illustrative Scenarios

Examples showing AK Connect use with different devices.

Listening to Music

Music Selection and Playback

How to choose and start playing music tracks.

Music Playback Controls

Using Playback Functions

Using controls like volume, play/pause, and progress bar.

Playlist and Playback Options

Managing Playback Modes and Lists

Options for repeat, shuffle, and list management.

Playlist Screen Interface

Viewing and Managing Playlists

Explains the interface for viewing and managing playlists.

Playlist Management

Creating and Adding Songs to Playlists

Steps to create new playlists and add/remove songs.

Playlist Editing

Removing Songs and Playing Playlists

How to remove songs and play entire playlists.

Playlist Management Actions

Renaming and Deleting Playlists

Procedures for managing existing playlists.

USB DAC Installation

DAC Compatibility and Setup

Information on installing the DAC driver and supported formats.

Using USB Audio

Connecting to External DACs

How to connect the device to portable USB DACs for audio output.

USB Audio Configuration

DSD Output Settings

Changing DSD output settings for USB audio.

CD Ripping

Connecting and Using the CD-Ripper

Steps for connecting and operating the AK CD-RIPPER.

Automatic CD Ripping

Setting up and performing automatic CD ripping.

CD Ripping Operations

Manual CD Ripping and Results

Performing manual ripping and understanding outcomes.

Device Settings - Network and Audio

Network and Bluetooth Configuration

Configuring Wi-Fi and Bluetooth connections.

Audio Settings

Adjusting equalizer, gapless playback, and sound balance.

Device Settings - System and Display

Audio and Playback Settings

Adjusting equalizer, gapless playback, line out, and balance.

System Configuration

Notification Panel and USB Modes

Managing notification settings and USB connection modes.

Device Configuration

Name, Language, and Timer Settings

Options for device name, language, keyboard, and timers.

Downloads, Updates, and System Info

File Downloads and System Information

Managing downloads and viewing device system details.

System Reset Options

Resetting Device Settings

Performing media scans, settings reset, or factory reset.

Connecting to Wi-Fi

Selecting and Connecting to Wireless Networks

Steps to find and connect to available Wi-Fi networks.

Using Bluetooth

Pairing and Managing Bluetooth Devices

Turning Bluetooth on/off, pairing, and disconnecting devices.

Bluetooth Management

Removing Bluetooth Pairings

How to remove previously paired Bluetooth devices.

Equalizer Setup

Creating and Saving EQ Presets

Steps to create, name, and save custom equalizer settings.

Equalizer Parameter Adjustment

Adjusting EQ Frequencies and Gain

Modifying frequencies, Q values, and gain in EQ settings.

Managing Custom EQ Settings

Deleting and Renaming EQ Presets

How to delete or rename previously saved equalizer profiles.

Safety Precautions

Device Handling and Environment

Guidelines for safe operation, temperature, and avoiding damage.

General Usage Safety Warnings

Important Safety Advice

Safety advice for vehicle use, volume limits, and general use.

Troubleshooting Common Issues

Solutions for Device Problems

Troubleshooting tips for power, charging, connectivity, and sound issues.

Copyright Information

Manual Usage and Rights

Details on copyright ownership and manual reproduction policies.

Certifications and Trademarks

Regulatory Compliance and Brands

Information on FCC, KC, CE certifications and registered trademarks.

Disclaimers

Product Disclaimers and Notices

Manufacturer liability, warranty, and specification change notices.

Specifications

Technical Specifications

Detailed specifications of the device hardware and features.

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