A&norma SR25

New hi-fi standard
  • Quad-Core CPU paired with the Dual Cirrus Logic CS43198
  • Native playback support for DSD256
  • Ultra-high quality playback without compromise
  • Newly designed circuitry to improve sound quality enhancements
  • Bluetooth LDAC codec to give users more options for higher quality
Sale price£649.00
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The new hi-fi standard, A&norma SR25


Get the complete Astell&Kern experience from our most compact, affordable digital audio player yet - it has the power to keep you entertained all day long.


Uncompromised sound

Making the unique Astell&Kern experience available to as wide an audience as possible doesn’t leave room for compromise. So SR25 features native 32bit/384kHz and DSD256 playback, thanks to its outstanding Cirrus Logic CS43198 Master Hi-Fi DAC. This kind of performance is without equivalent at the price.

All day and all of the night

Despite its usefully compact dimensions, SR25 has the stamina you need for even the longest listening sessions. A playback time of up to 21 hours from a single charge is well within reach, without any compromise to the sound quality that makes Astell&Kern such a discerning choice in the first place.

Optimised options

As well as 24-bit aptX HD Bluetooth wireless playback, SR25 adds support for LDAC wireless connectivity too. Your options are increased - so you can enjoy thrilling high-resolution A&K sound quality using a huge range of wireless headphones and speakers.

Exclusive metalworking technology

Nobody else’s digital audio players perform like ours - and nobody else’s look like ours, either. That’s thanks to our incredible 5-axis machining, which processes solid aluminium billets in one uninterrupted process. So your SR25 looks and feels as good as it sounds.

The world’s music in your hand

The SR25 user interface is based on Android 9.0 - and then it’s customised to give a smooth, straightforward experience that’s unique to Astell&Kern. Integrate your favourite streaming services and internet radio stations - and then hear them at their absolute best.

"The SR25 demonstrates just how good music on the move can sound, while also remaining reasonably affordable. The A&norma SR25, then, remains top of the tree for portable music players at this price, and a worthy recipient once again of a What Hi-Fi? Award in this category."

What Hi-Fi? Awards 2021, Product of the Year

"Astell&Kern's entry-level music player remains unbeatable at this level."

What Hi-Fi? Awards 2021, Best Portable Music Player £500-£1000

“Notably more expressive and eloquent than any other portable music player we’ve encountered at this price, and far beyond anything that smartphones are capable of, the SR25 demonstrates just how good music on the move can sound…By squeezing even more performance out of its entry-level player, Astell & Kern has guaranteed that the SR25 is a winner.”

What Hi-Fi?, Product of the Year 2020

"Astell & Kern's most affordable portable music player is an excellent. It's fine, unique design and focus on audio quality above all else makes this a better option for listening to music than a smartphone."

Trusted Reviews, 4.5 stars, Recommended award

"This entry-level player from A&K may look a little eccentric but it’s beautifully built and almost a work of art…For anyone who is unwilling to compromise on sound quality, the A&K SR25 makes a perfect companion for listening to high-quality audio when away from home. The sound is sublime…If you’re looking for a DAP with pedigree, you can’t go far wrong with the A&norma SR25 from Astell&Kern."

Forbes, October 2020

"For those able to take advantage of its more powerful balanced output, this DAP will drive just about any headphone from super-sensitive IEMs to big over-ears, and render a soundstage large enough to compete with serious desktop amps. It effectively wipes the floor with smartphone alternatives and I’d be surprised if any other portable audio players at this price could match it’s wide-open delivery."

The Ear, Best Buy

"Quite simply, probably the only DAP you will ever need"

Hi-Fi Choice, 5 stars, Recommended award

A&norma SR25
A&norma SR25
A&norma SR25
A&norma SR25

Included in the box

  • 1x Astell&Kern A&norma SR25 player
  • 1x USB-C to USB-A cable (1 metre)
  • 3x screen protectors
  • 1x Quick start guide
 whats in the box
General Specifications
Body Color
Moon Silver
Body Material
3.6inch WVGA (720 x 1,280) TFT LCD
Supported Audio Formats
(Tidal Masters), Local files, External USB, MQA-CD(ripped)
Sample rate
PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample) / DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level
Unbalanced 2.0Vrms / Balanced 4.0Vrms (Condition No Load)
Cirrus Logic CS43198 x2 (Dual DAC)
Support up to 32bit / 384kHz Bit-to-Bit Playback
USB Type-C input (for PC & MAC)
Unbalanced Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
802.11 b/g/n (2.4GHz)
2.5 ”(63.5 mm) [W] x 4.26 ”(108.3 mm) [H] x 0.63 ”(16.1 mm) [D]
about 6.27 oz (about 178 g)
Feature Enhancements
Firmware upgrades supported (OTA)
Audio Performance
Frequency Response
±0.014dB (Condition: 20Hz~20kHz) Unbalanced / ±0.011dB (Condition: 20Hz~20kHz) Balanced
±0.10dB (Condition: 20Hz~70kHz) Unbalanced / ±0.12dB (Condition: 20Hz~70kHz) Balanced
Signal to Noise Ratio
122dB @ 1kHz, Unbalanced / 123dB @ 1kHz, Balanced
-138dB @ 1kHz, Unbalanced / -144dB @ 1kHz, Balanced
0.0007% @ 1kHz, Unbalanced / 0.0008% @ 1kHz, Balanced
0.0004% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz(4:1) Balanced
Output Impedance
Unbalanced Out 3.5mm (1.8ohm) / Balanced out 2.5mm (1.6ohm)
Clock Source
Clock Jitter
Reference Clock Jitter
200 Femto Seconds
3,150mAh 3.7V Li-Polymer Battery
Continuous Playback Time
About 21 hours (Standard - MUSIC: FLAC, 16-bit/44.1kHz, Unbalance, Volume 50, EQ OFF, LCD OFF)
Charge Time
About 2.5 hours (Standard - 5V/2A Charging)
Built-in Memory
External Memory
microSD (Max. 1TB) x1
Supported OS
Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up