
Do you have a question about the Astell & Kern SR15 and is the answer not in the manual?
| display size | 3.3 inch |
|---|---|
| display resolution | 480 x 800 |
| supported audio formats | WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF |
|---|---|
| sampling rate | PCM: 8kHz-192kHz, DSD Native: DSD64, DSD(DSD to PCM): DSD128 |
| output level | Unbalanced 2.0Vrms / Balanced 4.0Vrms |
| battery capacity | 3, 150mAh |
|---|---|
| battery voltage | 3.7V |
| battery type | Li-Polymer |
| frequency response | ±0.030dB (20 Hz~20 kHz) Unbalanced / ±0.024dB (20Hz~20kHz) Balanced |
|---|---|
| signal to noise ratio | 122dB @ 1kHz, Unbalanced / 122dB @ 1kHz, Balanced |
| crosstalk | 137dB @ 1kHz, Unbalanced / 131dB @ 1kHz, Balanced |
| built-in memory | 64GB |
|---|---|
| external memory support | microSD (Max 400GB) |
| memory type | NAND |
| wi-fi | 802.11 b/g/n (2.4GHz) |
|---|---|
| bluetooth | V4.1 (A2DP, AVRCP, aptX HD) |
| usb input | USB Micro-B |
| dimensions | 2.26” (57.5mm) x 3.92” (99.7mm) x 0.63” (16.1mm) |
|---|---|
| weight | 5.6oz(159g) |
Lists items included in the box such as cables and guides.
Identifies physical connections and operational buttons on the device.
Explains the touchscreen interface and home button functionality.
How to turn the device on/off, manage screen power, and reset.
Settings for automatic shutdown and screen turn-off.
Instructions for charging via computer or a USB wall adapter.
How to connect headphones and other audio equipment.
Steps for connecting to a computer for file transfer or DAC use.
Procedures for managing music files on the device.
Proper procedure for safely disconnecting the device from a computer.
How to insert and safely remove microSD cards.
Information on compatible cards and usage precautions.
Guide for updating the device's firmware wirelessly.
Using the touch display for device interaction and access.
Swiping gestures to open the main menu and notification bar.
Swiping to access the current playlist and play history.
How to scroll through lists and sort music by criteria.
Identifies numbered elements on the Home Screen.
Detailed explanations for each numbered element on the Home Screen.
Explains the function of icons in the notification area.
How to add, remove, or reorder quick settings buttons.
Connecting to Wi-Fi to access music stores for streaming/purchases.
Installing and configuring the MQS server for network streaming.
Connecting the player to music libraries and speakers via AK Connect.
Steps to connect to libraries/speakers using AK Connect.
How to stream and download music from your library.
Examples showing AK Connect use with different devices.
How to choose and start playing music tracks.
Using controls like volume, play/pause, and progress bar.
Options for repeat, shuffle, and list management.
Explains the interface for viewing and managing playlists.
Steps to create new playlists and add/remove songs.
How to remove songs and play entire playlists.
Procedures for managing existing playlists.
Information on installing the DAC driver and supported formats.
How to connect the device to portable USB DACs for audio output.
Changing DSD output settings for USB audio.
Steps for connecting and operating the AK CD-RIPPER.
Setting up and performing automatic CD ripping.
Performing manual ripping and understanding outcomes.
Configuring Wi-Fi and Bluetooth connections.
Adjusting equalizer, gapless playback, and sound balance.
Adjusting equalizer, gapless playback, line out, and balance.
Managing notification settings and USB connection modes.
Options for device name, language, keyboard, and timers.
Managing downloads and viewing device system details.
Performing media scans, settings reset, or factory reset.
Steps to find and connect to available Wi-Fi networks.
Turning Bluetooth on/off, pairing, and disconnecting devices.
How to remove previously paired Bluetooth devices.
Steps to create, name, and save custom equalizer settings.
Modifying frequencies, Q values, and gain in EQ settings.
How to delete or rename previously saved equalizer profiles.
Guidelines for safe operation, temperature, and avoiding damage.
Safety advice for vehicle use, volume limits, and general use.
Troubleshooting tips for power, charging, connectivity, and sound issues.
Details on copyright ownership and manual reproduction policies.
Information on FCC, KC, CE certifications and registered trademarks.
Manufacturer liability, warranty, and specification change notices.
Detailed specifications of the device hardware and features.