OVERVIEW FEATURES GALLERY SPECIFICATIONS

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

£649.00

Sold out

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

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

General Specifications

Model

SR25

Body Color

Moon Silver

Body Material

Aluminum

Display

3.6inch WVGA (720 x 1,280) TFT LCD

Supported Audio Formats

WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA MQA playback

Services

(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)

DAC

Cirrus Logic CS43198 x2 (Dual DAC)

CPU

Quad-Core

Decoding

Support up to 32bit / 384kHz Bit-to-Bit Playback

Input

USB Type-C input (for PC & MAC)

Outputs

Unbalanced Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)

Wi-Fi

802.11 b/g/n (2.4GHz)

Bluetooth

V4.2 (A2DP, AVRCP, aptXTM HD, LDAC)

Dimensions

2.5 ”(63.5 mm) [W] x 4.26 ”(108.3 mm) [H] x 0.63 ”(16.1 mm) [D]

Weight

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

Crosstalk

-138dB @ 1kHz, Unbalanced / -144dB @ 1kHz, Balanced

THD+N

0.0007% @ 1kHz, Unbalanced / 0.0008% @ 1kHz, Balanced

IMD SMPTE

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

25ps(Typ)

Reference Clock Jitter

200 Femto Seconds

Battery

Capacity

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)

Memory

Built-in Memory

64GB [NAND]

External Memory

microSD (Max. 1TB) x1

OS

Supported OS

Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up