Astell&Kern A&norma SR15 Portable High-Resolution Audio Player (Dark Gray)

Astell&Kern A&norma SR15 Portable High-Resolution Audio Player (Dark Gray)

Astell&Kern A&norma SR15 Portable High-Resolution Audio Player (Dark Gray)

Astell&Kern A&norma SR15 Portable High-Resolution Audio Player (Dark Gray)

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Product Highlights

  • 24-Bit, 192 kHz Bit-to-Bit Playback
  • Cirrus Logic CS43198 x 2 (Dual DAC)
  • PCM and DSD File Support
  • Wi-Fi and Bluetooth Capable
  • 3.3" WVGA AMOLED Full Touchscreen
  • 64GB Internal Flash Memory
  • 400GB microSD Card Slot
  • Preamp for Digital Audio via USB
  • Quad-Core CPU for Fast Processing
  • Brushed Aluminum Body
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Astell&Kern SR15 overview

  • 1Description

Styled in dark gray, the Astell&Kern A&norma SR15 aims to be a portable system for playback of high-res audio, utilizing dual Cirrus Logic CS43198 chips and supporting 24-bit/192 kHz bit-to-bit type playback. The 64GB of on-board storage can be expanded with a microSD card (up to 400GB, total). The device can also work as a preamp for digital audio over USB.

32-bit audio is down-sampled using a sample-rate converter, and DSD 64/128 can be played back through conversion to PCM. DSDNative, on the other hand, stays in the DSD world. The player sports 3.5mm, 3-pole unbalanced and 2.5mm, 4-pole balanced headphone jacks. The balanced output can remove noise (common mode noise) that can occur in signal and inverting amplifier signal, while offering increased power output due to its double transmitting of signals.

The player sports a quirky design with a screen diagonally inset against a rectangular backdrop for an idiosyncratic look. The volume wheel is designed to be protruding slightly from a concave surface so that you can control volume with a simple motion of sliding your finger up and down. With onboard quad-core CPU, the SR15 possesses more than enough power for playing digital music and powering the user interface. 

The audio player supports USB audio digital out and allows you to connect diverse digital-input portable amps through USB. It can transfer DSD in native through DoP and convert 5.6 MHz DSD into PCM for output to portable amps that do not support DoP. External amplifiers can be connected to the device utilizing a separately available OTG cable. An aluminum body lends durability to the whole construction.

Dual DAC
  • The dual DAC offers a separated channel circuit design that offers less noise and interference, while adding more fidelity and audio output power, to create a bigger sound stage with clearer imaging when paired with your favorite headphones or speakers
High Audio Output
  • With a substantial power output of 4.0 Vrms from the balanced output, the SR15 can drive a wide range of heavy, hard-to-drive headphones without a problem thanks to Astell&Kern's audio design technology
  • The redesigned audio circuit creates authentic sounds by exceeding previous Hi-Fi Audio specifications, including SNR, Crosstalk, and THD+N, over previous models
Compact Size
  • The SR15 delivers Hi-Fi audio quality in a pocket-sized portable package
  • The ergonomic body design fits nicely in the palm of the hand, making operation a smooth, one-handed experience
High Definition Audio Playback
  • The SR15 plays any resolution of digital files up to 24-bit/192 kHz, bit-for-bit
  • 32-bit audio and single- or double-rate DSD can also be played, but it will be converted to PCM or down-sampled
Balanced Out
  • The SR15 delivers original sound using the 2.5mm 4-pole balanced output that provides a more powerful audio signal with less noise interference
USB Audio
  • USB Audio
    • A simple USB connection will allow the SR15 to be used as a digital music storage device and/or pre-amp to output digital audio through USB
    • The SR15 transfers DSD in native format through DoP (DSD over PCM), or converts DSD to PCM if DoP isn't supported
    • Connect to your Windows/Mac computer, or other system, via a USB cable and use the SR15's hardware to provide enhanced sound quality
    • Bring out more detail and provide a better listening experience than your computer can deliver, even when listening to your favorite streaming service
    • Use the SR15 as a USB DAC for playback support up to 24-bit, 192 kHz to deliver a richer sound through a larger soundstage and resolution
    • For DSD playback, simply install the DAC driver on your computer and play DSD with ease
UPC: 821566016737
In the Box
Astell&Kern A&norma SR15 Portable High-Resolution Audio Player (Dark Gray)
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Astell&Kern SR15 specs

    DAC 2 x Cirrus Logic CS43198 24-Bit
    External DAC Functionality Yes
    Audio Resolution PCM: 192 kHz / 24-Bit
    DSDNative: 2.8 MHz / 1-Bit
    DSD128: 5.6 MHz / 1-Bit
    Frequency Response 20 Hz - 20 kHz±0.03 dB (Unbalanced Headphone Out)
    20 Hz - 20 kHz±0.024 dB (Balanced Headphone Out)
    10 Hz - 70 kHz±0.038 dB (Unbalanced Headphone Out)
    10 Hz - 70 kHz±0.065 dB (Balanced Headphone Out)
    Impedance 1.6 Ohms (Balanced Headphone Out)
    1.1 Ohms (Unbalanced Headphone Out)
    Volume Control Digital
    THD + N 0.0008% at 1 kHz (Unbalanced)
    0.0009% at 1 kHz (Balanced)
    Signal to Noise Ratio 122 dB (Balanced)
    122 dB (Unbalanced)
    Clock Jitter 45 ps
    Crosstalk 137 dB at 1 kHz (Unbalanced Headphone Out)
    137 dB at 1 kHz (Balanced Headphone Out)
    CPU  Quad-Core
    Internal Storage Capacity 64 GB
    Maximum Storage Capacity 400 GB
    Flash Media Slot 1 x microSDXC
    Display 3.3" LCD (480 x 800 Resolution)
    Operation Method Physical Buttons, Touchscreen, Volume Wheel
    Media Support
    FM Tuner No
    Video Recording No
    Formats Supported Audio: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
    Wireless Wi-Fi 4 (802.11n)
    Bluetooth Codecs aptX HD
    Connections 1 x 2.5 mm Balanced Headphone
    1 x 1/8" (3.5 mm) Stereo Headphone
    1 x Micro-USB 2.0
    Battery Built-In Rechargeable Lithium-Polymer Battery 3150 mAh
    Water Resistance None
    Dimensions (W x H x D) 2.3 x 3.9 x 0.6" / 57.5 x 99.7 x 16.1 mm
    Weight 5.43 oz / 154 g
    Packaging Info
    Package Weight 0.7 lb
    Box Dimensions (LxWxH) 5.1 x 3.8 x 1.9"

    Astell&Kern SR15 reviews

    A&norma SR15 Portable High-Resolution Audio Player (Dark Gray) is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from Sublime Sound, Flawed Form I've burned in the SR15 for about 40 hours+ so its sounding better then when I first got it. I'm not good at reviews, but I can say it is very smooth and musical sounding and yet detailed. The vocals seem a bit pushed back, But the bass is rumbly and detailed. Sound stage is a bit intimate but deep and there is good 3d effect and placement of instruments. Treble seems to extend well and there is clarity and some shimmer. Overall impression is rich texture yet smooth and musical. Volume knob is wobbly, and the headphone outputs stick awkwardly out the top of the player. These two are a swing and a miss for me, and in addition, the wifi function is tenuous at best. Yes I recommend, the sound is phenomenal, once it is burned in.
    Date published: 2018-09-09
    • y_2018, m_12, d_4, h_18
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