Astell&Kern SR25 Audio Player User Guide

Official user guide for the Astell&Kern SR25 high-resolution audio player, covering setup, operation, connectivity, and troubleshooting.

Brand: Astell & Kern
Category: Digital
Document type: User Manual
Language: English
Pages: 62
File format: PDF
File size: 3.9 MB
Published: 16 October, 2026
Updated: 16 October, 2026
MD5 checksum: BCD803C721DE2026840F921828104B48
PDF: Astell&Kern SR25 Audio Player User Guide PDF

About this manual

This document serves as the official instruction book for the Astell&Kern SR25 portable music player. It details package contents including the protective film, microSD card slot cover, USB Type-C cable, warranty card, and quick start guide. The manual provides step-by-step instructions on getting started with the device, managing power and charging via a 5V 2A adapter, and utilizing various connectivity options.

What's inside

Package Contents
Getting Started
Power Management
Charging
Connections
Firmware Updates
Basic Operations
Using the Device
Safety Precautions
Specifications

Specifications

Charging Time	Approx. 2.5 hours
Power Input	5V 2A
Bluetooth Codecs	SBC, AAC, aptX™, aptX™ HD, LDAC
Bluetooth Range	2 m (6.5 ft.)

Frequently asked questions

How do I force shutdown the device?

Press and hold the Power button for 7 seconds to force a shutdown.

What adapter should be used for charging?

Use commercially available adapters with a 5V 2A output; using 9V or 12V may cause malfunctions.

How do I remove a Bluetooth pairing?

Press the button to the right of the paired device in settings and select Remove.

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