Astell&Kern SR35 player 3 quarter front over white background
Astell&Kern SR35 player front over white background
Astell&Kern SR35 player back over white background
Astell&Kern SR35 player profile over white background
Astell&Kern SR35 player 3 quarter top over white background
Astell&Kern SR35 player 3 quarter front and back over white background
Astell&Kern SR35 player x2 front and back over white background

Astell&Kern A&norma SR35 | Digital Audio Player

Regular price $799.00 Sale price$649.00 Save 19%
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Astell&Kern product logo red

Enjoy the A&K Premium Sound On-the-Go with the SR35 Digital Audio Player

  • Features Cirrus Logic CS43198 Quad-DAC (Quad/Dual switching mode)
  • New UI with "Crimson" theme
  • New Generation AMP tech with 2-Step Gain mode
  • Dual WiFi (2.4 & 5GHz)
  • 20-hour continuous playback
  • Supports 2-way Bluetooth and LDAC, aptX™ HD, 1st Roon Ready A&norma DAP

Astell&Kern SR35 player on wood table with HiFiMAN Arya headphones

Bloom's Take

While A&K’s flagship A&ultima series (SP3000) for sure gets all the glory, it’s easy to forget about the A&norma lineup which typically takes portions of tech from the TOTL series, and turns them into class-leading designs at lower prices. Enter the SR35 with its quad-DAC, new amp under the hood, compact form-factor (one of the smallest among high-end DAPs), new and improved ‘Crimson’ UI, and excellent battery life at 20 hours of playback. It’s well-built with typical, top-notch A&K fit and finish, and provides a premium feel for 800 bucks.

If you want a taste of what a flagship player does without dropping a mortgage payment, the SR35 delivers a perfectly scaled down version of the SP3000 sound and performance for a flagship experience we can all enjoy.

Read our full review here.

Need some guidance getting your music files onto your Astell&Kern DAP? Check out our updated Audiophile 101 guide!


Quad DAC Mode for True Hi-FI Sound

For the first time in the A&norma series, the SR35 deploys the Cirrus Logic CS43198 DAC in Quad configuration. In addition, A&K incorporates its unique technical collaboration between the DAC and patented TERATON ALPHA tech for outstanding advancement in dynamics, space, resolution, and separation. A Dual/Quad DAC switch mode is also offered enabling users to adjust and improve power mgmt. efficiency.

Closeup of Teraton circuit board

New Generation Amp

The SR35 is equipped with New Generation AMP tech previously exclusive to the A&ultima line, a unique design that improves noise reduction at high power output. The SR35 now contains the same amp design as the latest A&ultimate and A&futura products. Moreover, in order to reliably operate at varying impedances, the output current handling capability is increased to maximize the performance across all devices.

2-Step Gain Mode

The SR35 supports a 2-step Gain Level mode to create the perfect match for a wide range of headphones and IEMs for seamless use of both sensitive and hard-to-drive devices. Both 'Normal Gain' and 'High Gain' modes can generate a high current output to create a powerful sound and excellent driver control with up to 6Vrms from the balanced connections.

Astell&Kern SR35 with Focal headphones and ceramic decor

All-Day Music

The SR35 provides Hi-Fi audio anywhere at any time with premium-class specs and portability, featuring continuous playback time of 20 hours before requiring a recharge. Its compact size fits easily in your pocket, and weighing in at only 6.5 oz, it's light enough to carry without inconvenience.

New Experience, New UI

The SR35 comes with a redesigned Crimson-themed UI, transforming it into a deeply connective music player. It's designed for quick music category browsing and re-experiencing forgotten songs. A&K added an album art search function for re-discovery and heightened interaction of music album art while listening.

Astell&Kern SR35 player on wood table highlighting LCD screen and UI

Specifications

  • Material: Aluminum
  • Supported OS: Windows 10, 11 (32/64bit) | MAC OS X 10.7
  • Astell&Kern 1 Year Warranty
  • Display: 3.6”, 720 x 1280 touchscreen
  • Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DIFF, DSF, MQA
  • Sample Rate
    • PCM: 8kHz ~ 384kHz (8/16/24/32-bits per Sample)
    • DSD Native: DSD64 (1-bit, 2.8MHz) Stereo | DSD128 (1-bit, 5.6MHz) Stereo | DSD256 (1-bit, 11.2MHz) Stereo
  • Output Level (No Load)
    • [Normal] UnBAL 2.1Vrms | BAL 4Vrms
    • [High] UnBAL 3.1Vrms | BAL 6Vrms
  • CPU: Quad-Core
  • DAC: Cirrus Logic CS43198 (x4)
  • Decoding: Support up to 32-Bit/384kHz Bit-to-Bit Playback
  • Input: USB-C (for charging & PC/MAC)
  • Outputs
    • UNBAL: (3.5mm), Optical
    • BAL: 2.5mm, 4-pole | 4.4mm, 5-pole
  • Wi-Fi: 802.11 a/b/g/n/ac (2.4/5GHz)
  • Bluetooth: v5.0 (A2DP, AVRCP, Qualcomm aptX HD, LDAC)
  • Dimensions: 2.5" x 4.3” x 0.63"
  • Weight: 6.5oz
  • Firmware upgrade supported (OTA)
  • Operating Temp: 32℉ ~ 104℉

Audio (Normal Gain)

  • Frequency Response
    • UnBAL: ±0.012dB (20Hz~20kHz) | ±0.125dB (20Hz~70kHz)
    • BAL: ±0.011dB (20Hz~20kHz) | ±0.126dB (20Hz~70kHz)
  • S/NR: 127dB @ 1kHz, UnBAL │ 130dB @ 1kHz, BAL
  • Crosstalk: -133dB @ 1kHz, UnBAL │ -145dB @ 1kHz, BAL
  • THD+N: 0.0005% @ 1kHz, UnBAL │ 0.0006% @ 1kHz, BAL
  • IMD SMPTE: 0.0002% 800Hz 10kHz (4:1) UnBAL │ 0.0002% 800Hz 10kHz (4:1) BAL
  • Output Impedance: 1.1Ω, UnBAL │ 2.7Ω, BAL

Clock

  • Jitter: 25ps (Typ)
  • Reference Jitter: 70ps

Storage

  • Built-In Memory: 64GB [NAND]
  • External Memory: (x1) microSD (Max. 1TB)

Battery

  • Capacity: 3150mAh, 3.7V Li-Polymer
  • Charge Time: 2.5 hours (5V/2A General Charging)
  • Playback Time: 20 hours (Standard: FLAC, 16-bit, 44.1kHz, Normal Gain, UNBAL, Vol. 50, LCD Off, Dual DAC Mode)

In the Box

  • SR35 Device
  • USB-C Cable
  • Quick Start Guide
  • microSD card slot cover
  • Protective Films
  • Case not Included | Purchase Separately

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Customer Reviews

Based on 5 reviews
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O
OE
Great little device

Love the design, easy to use, great sound quality. Definitely a keeper.

N
NPayne
Ahh, my precious SR35

First off, I need to thank BloomAudio for their help in selecting this device, that I call "my precious". The build is very high quality, it's sturdy and handles very well. Sound is outstanding with my MM100 Headphones and even better when I add my tube amp. But even as a standalone, the sound is soo good. And the battery life is outstanding as well. Frankly, I did not realize I needed this device in my life until I had it. Finally let go of my dam phone, no other distractions and really focus on the music. It's so relaxing. With my morning coffee or a Chardonnay at night, my music never sounded and felt better. Thanks Bloom Audio and Askell & Kern.

L
Lingchuan Xu

Love it

T
Tim L.
Many upgrades from the SR25 (1 & 2) have made a very fine performer even better.

There are many reviews of the SR35 appearing online so I won’t go into detail but the one improvement that I find most noticeable is the new “crimson” interface. Faster, almost spritely, and the random seek feature is more useful and fun than I would have predicted. Quad DACs, High Gain Amp, improved clarity are all very much to the good, and the new UI seals the deal.

J
James

Great DAP! Great Value!


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