Astell & Kern A&norma SR25 (Moon Silver)

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£499 RRP £649
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Astell & Kern A&norma SR25 (Moon Silver) is rated 4.7 out of 5 by 12.
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Astell & Kern A&norma SR25 (Moon Silver)

Portable High Resolution Audio Player
£499 RRP £649
SAVE£150
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”By squeezing even more performance out of its entry-level player, Astell & Kern has almost guaranteed that the SR25 is a winner.” ’What Hi-Fi?’ 2021 Product of the Year.

Award-winner made better

It’s not easy improving upon a class-leader, but that’s just what Astell & Kern have done with the A&norma SR25. A faster, Quad-Core processor and newly designed circuitry give improved sound quality. Native support for DSD256 is now standard for enhanced quality with DSD files. The addition of Bluetooth LDAC improves the quality of wireless sound through compatible headphones. Finally, the new Performance Mode optimises playback.

Quad Core and Dual DACs
Featuring a new Quad-Core CPU, the SR25 has the power to get the most from your Hi-Res music files. Hi-Fi quality, Cirrus Logic Master HiFi DACs (Digital to Analogue Convertors) provide the SR25 with exceptional resolution. Meeting the highest standards for sonic precision, the DACs guarantee a reference level of sound. Using one DAC for the left channel and another for the right, the SR25 offers channel precision and stereo imaging that's well beyond most rivals.

Flexible format player
There are many HD Audio recordings already available to download online and you may already have started a collection on your computer or NAS drive. Where the SR25 really scores is being able to take those recordings with you - in the highest quality possible. The SR25 supports a wide range of file formats, including WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF and MQA.

Native DSD256 support
With native DSD support now at DSD256, the SR25 offers a big step-up from the DSD64 native support offered by the SR15. As an alternative to PCM sampling, many of the large music labels, including Sony, support DSD files. DSD is renowned for its huge dynamic range, ‘inky’ quiet backdrop and subtle detail that gives music ‘life’ and realism.

Performance Mode
Making the most of high quality files, the new Performance Mode optimises the player’s memory allocation according to the size of file being played. This helps minimise data loss, meaning you get to hear every subtle detail of music. Combined with the improved circuitry, it makes the SR25 a more revealing player than ever. Simply put, if it’s on the recording, you’ll hear every note.

Connect to your wireless headphones with Bluetooth LDAC
Bluetooth LDAC enhances the quality of a Bluetooth connection for more detailed and dynamic sound. Pair with compatible headphones, such as Sony LDAC models, and enjoy a much more detailed sound than standard Bluetooth connectivity.

Improved battery life
With a battery life of around 21 hours, the SR25 doubles the 10-hour life of the previous SR15 model – making it much more convenient on longer trips away. Charging time is around 2.5 hours.

Store it all - 64GB internal memory and now with support for a massive 1TB
With 64GB of internal memory, the SR25 stores about 625 tracks (24 bit/96kHz, 4 minute-long, 90MB) songs on its flash memory. With the addition of a micro SD card, this can be increased by up to a massive 1TB – enough for a lifetime’s collection of music.

Support for balanced headphones
With its 4-pol, 2.5mm headphone socket, the SR25 is ideal for use with balanced headphones. Using a balanced signal between the source and headphones reduces noise and interference and is especially handy on the move. A standard 3.5mm unbalanced socket is also standard.

Android 9.0 operating system
With firmware based on the Android 9.0 operating system, the SR25 is compatible with a wide range of music streaming apps. Spotify, TIDAL, Amazon Music and Deezer are the popular titles, amongst many others. Wi-fi connectivity ensures the SR25 makes an impressive music streamer as well as Hi-Res player.

If you love music on the move, you’ll find the Astell & Kern SR25 provides you with the detail your smartphone’s been missing.
Smart Features
Quad Core Processor
Yes
Connectivity
Bluetooth
Yes
USB
1 (USB-C)
Audio
Frequency Response (Hz)
20 - 70,000
High Resolution Audio
Yes
Features
Audio Formats
WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
DAC
Dual Cirrus Logic CS43198
Flash Memory Capacity
64GB
Memory Card Supported
Up to 1TB via micro SD
Energy Consumption
Battery Life
Up to 21 hours
Dimensions
Dimensions WxHxD (mm)
64 x 108 x 16
Weight
Weight (KG)
178g
Rated 5 out of 5 by from Astell & Kern SR25 Needed a replacement for my previous iBasso which has gone faulty. I was looking for a unit that had good sound quality through headphones but was also able to connect via bluetooth to my car and other speaker. Read a review from someone saying they had a problem with this particular function so i called Richer and was assured that it wouldnt be an issue and if it was i could return for a full refund. So i bought the unit, at a great price. It arrived the next day and works as it should.
Date published: 2021-11-22
Rated 5 out of 5 by from Very impressed I bought it yesterday and have fallen in love with it. The easy bit was inserting the SD card with lots of ripped CDs. It recognised it immediately. Tidal is pre-installed but if you want to be able to download albums or playlists there's a bit of a faff which involves APK files for it and Qobuz. It's really worth doing that. By comparison listening to music through your phone is a bit like the difference between a pretty good photocopy and a high quality photo. The device is beautifully designed and listening to music through anything else is likely to be a bit of a disappointment.
Date published: 2021-11-14
Rated 1 out of 5 by from Waste of Money Bought it to store my CD collection on FLAC, play it from the one source through my hifi, my car and through headphones. Will not link to the car although it is a popular type, Intermittent at best through the hifi and could only play one track at a time, but it works through the headphones. Controls are fiddly and not easy to follow. All not what I would expect from a fairly pricey product.
Date published: 2021-11-05
Rated 5 out of 5 by from The best, affordable DAP I use a DAP mostly for holidays. I need quality music when away from my hi fi. For a few years I have been using a Cayin with Sony noise cancelling headphones. Enjoyable and did the job but after buying Focal Clear headphones for home and ‘on the move’ use, it was obvious that the Cayin lack the power to drive them properly. Enter Astell & Kern. Better sound in all respects and the ability to drive decent headphone. Job done.
Date published: 2021-10-30
Rated 5 out of 5 by from Superb hi res player. Love the SR25! So easy to use, good size and weight, pretty much flawless!
Date published: 2021-02-27
Rated 5 out of 5 by from Excellent sound quality from such a small player I’ve been a music lover many years but never tried hi fidelity listening. Decided on Astell and Kern SR25. Although it is the entry level model, I’m blown away by the exceptional sound quality from the likes of Tidal and Amazon HD streaming and downloading sites. Not made my mind up which to subscribe to yet. I am currently using Oppo PM 3 headphones and very satisfied. Would like to compare other makes of headphones in the future though to maybe further enhance my listening experience. Being mainly concerned with portability. I’m more than happy with Astell and Kern SR25.
Date published: 2020-10-12
Rated 5 out of 5 by from Excellent HiRes Player I reviewed the SR15 a couple of months ago and I don't know why but decided to buy the SR25 as well and there are some good improvements. It is a little larger and heavier than the SR15 but the screen is an improvement, brighter and higher resolution. Amazon Music App: On the SR15 always detected device capability at 24bit / 48Khz. OK but on the SR25 device capability is reported as 24bit / 192KHz. So, hopefully the hi-res tracks should play back bit perfect as no re-sampling is required. This is probably due to the version of Android employed on the SR25. Battery life much improved, about double the SR15. This is no doubt due to the power consumption as the SR25 runs much cooler. Does it sound better? Well it uses the same Cirus Logic DACs. To be fair doing an A-B comparison is not easy and it all depends on your ear/head phones and of course your hearing. My HF starts to roll off at 8KHz, I'm not 21. So, yes it does sound good but to be fair the SR15 also sounds good. Is it worth upgrading, at £650 the differences need to worth it, that is the better screen, battery life etc need to be essential factors along with native playback of DSD and 384Khz files which is a little academic as I guess most users will playback 16bit / 44.1Khz FLAC files ripped from CDs. Is it worth it - Yes, do deserve it.
Date published: 2020-09-09
Rated 5 out of 5 by from Exactly what it should be. A very expensive toy, or a good music player? Both. Instructions are poor, you need to be able to use a computer and know your way around file formats, but if you are buying this you probably know what you are getting in to. Sound is very good. Nothing missing, no emphasis on high, low or mid, just a good music signal.
Date published: 2020-09-08
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