Astell&Kern SR25 Review

Astell&Kern SR25

Today we’ll be taking a look at the Astell&Kern SR25. The AK SR25 is available now for $699 USD. 


Note: Astell&Kern loaned us a sample of the SR25 for the purposes of this review. They are not a site sponsor, and as always all thoughts and opinions are our own. 

‘A little DAP’ll do ya’

Adding a Digital Audio Player, or ‘DAP’ to your listening set-up is a deliberate kind of choice. It says that you’ve decided to choose the fidelity of a wired set-up over the convenience of wireless, and that you’re determined to choose a pure listening experience over the distractions and audible compromises of your smartphone. Sure, you’re going to need to squeeze an extra device into your pocket or your bag, but if you’re even considering a DAP then you’re probably more than ok with that. Right? 

Astell&Kern SR25

The entry-level DAP market is a hotly-contested one, and the on-the-go-audiophile is currently spoiled for choice in terms of great devices to pick for their first (and perhaps last) portable companion. Astell&Kern has just gone and made it an even trickier decision with the release of the $699 USD SR25, spearheading their budget-friendly A&norma line and replacing their well-regarded SR15, which Linus reviewed a couple of years back. 

While the SR25 comes in a fraction more expensive than competitors from the likes of iBasso and Cayin, it sets out to establish itself as offering a more luxurious, aesthetic experience. A more deliberate choice, if you will. Your first glance at the SR25, like its predecessor the SR15, might be a slightly confusing one. No, your eyes aren’t tricking you – yes, the screen is tilted to the left by about ten degrees. Astell&Kern is no stranger to making statements in the design of their DAPs, which often feature rather Avant-Garde choices in their finishes and flourishes. In addition to *that* screen, which enjoys an upgrade in resolution to 720 x 1,280 pixels over the SR15’s 480 x 800, the SR25 carries-over the same trapezoidal body which has been milled via CNC in solid aluminium in no less than 5 axes. 

Speaking of body, the SR25’s has grown slightly over the SR15, albeit slightly. It adds an extra 24 grams to make for a (still very pocketable) 178 grams in total. Dimension-wise the SR25 has grown slightly in length and width to accommodate its screen and internals but it retains the same thickness as the SR15. On the bottom of the device, the SR25 swaps-out a USB Micro-B input for the infinitely-better USB-C to handle both charging and data duties.

Under its aluminium skin, the SR25 retains the SR15’s dual Cirrus Logic CS43198 DAC layout and 2.0Vrms (unbalanced)/4.0Vrms (balanced) power output but boasts a number of new tricks and features to make it ‘2020-ready’, including a new quad-core CPU. In addition to being able to play all the usual high-res audio formats up to 32-bit 384kHz PCM and native DSD256, the SR25 also adds MQA-support to the party, if that’s your bag. Wireless-fans will be pleased with the inclusion of V4.2 Bluetooth support, capable of transmitting to devices via the higher-fidelity aptX-HD and LDAC codecs. 

While the SR25 packs the same sized 3,150mAh 3.7V Li-Polymer battery as the outgoing SR15, Astell&Kern has managed to squeeze a substantial improvement in longevity out of it, for a claimed total of 21 hours versus the 10 hours or so from the SR15. Not bad. So, all-in-all we have a slightly larger but substantially cleverer DAP on our hands in the SR25, coming-in at the same $699 USD price as its predecessor. This sounds like a pretty great compact-DAP right out of the box, but naturally, it’s going to need to be both great to live with, and great-sounding to warrant its mark-up over the competition. Let’s take a look.

The review continues over the jump on page 2

4/5 - (59 votes)

Hailing from Sydney's eastern beaches, Matty runs his own beer business, 'Bowlo Draught', as well as working in creative advertising. When he's not enjoying his hifi and vinyl collection at home, he can probably be found rolling-up on the green at his beloved Bondi Bowling Club.


  • Reply November 17, 2020


    Was not expecting to see a campfire product here. That was a surprise!

    • Reply November 23, 2020


      They happened to be on my desk, and I thought it’d be rude not to see how they sounded : )

  • Reply November 17, 2020


    Hi Matty, Thanks for the detailed review. I have heard many good things about the SR25 as well.

    Do you plan to publish the SE200 review? There aren’t too many online reviews yet.

    • Reply November 17, 2020

      Matty Graham

      Watch this space mate, I’m doing some serious listening time with it now.

  • Reply November 18, 2020

    Michael Lee

    This is a great review about SR25 that gives a very clear clue for whether choose it or not.

  • Reply November 19, 2020


    Good review. I have the sr25 and i love it. I also have the se200 and i think it’s one of the best DAP that i ever have. Of course there a headphone combination factor to consider.

    • Reply November 20, 2020


      what is the best IEM with SE200? can you share your thought? Thanks

      • Reply November 21, 2020

        Matty Graham

        There’s no perfect answer to this I’m afraid Vince, it’ll come down to whatever is your preferred sound signature and form factor. However, I can say with confidence that the Final A8000 sounds pretty great with it.

  • Reply November 23, 2020

    Joe Tori

    Great review.

    It sounds as though AK have taken an holistic approach to improving the their entry-level DAP. As the owner of an SR15, battery life stands out to me as the most compelling improvement. I’m curious, though, about how the SR25 stacks up to its predecessor in terms of sound quality. In your estimation, does the sum of the feature enhancements make it worthwhile to upgrade from the SR15?

  • Reply December 3, 2020

    Laust Ejstrup

    Love the articles here. But please try (Headphonia) to access the site on a mobile device – the jumping content is really killing it.
    Should be an easy fix.
    Have a day:)

  • Reply December 5, 2020


    Funny how all reviews on Amazon say this DAP is crap.

  • Reply December 22, 2020

    Tom Fontanella

    Great review. I “might” be getting one for Christmas. The only thing concerns me is the Wi-Fi quality. But I know there are ways to work around it.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.