Astell & Kern A&norma SR15 Portable Music Player (Dark Gray) with AK Ripper MKII CD-Ripper

Model: WWSSR15RIP UPC: 703158781660 Item: 172097


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A&norma SR15 Portable Music Player

A&norma sets the standard of Hi-Fi audio for novice listeners. The SR15, the first model of A&norma, is the beginning point of the Hi-Fi Audio experience that allows you to enjoy the philosophy and technologies of Astell&Kern, which is accolated by audiophiles around the world.


  • Dual DAC of CS43198, MasterHIFI tier chipsets from Cirrus Logic
  • Enhanced audio processing power and snappy UI with Quad-core CPU
  • Native DSD playback and playback-focused User Interface
  • Powerful audio performance curated by Astell&Kern's know-how

One Step Closer to the Original Performance

The A&norma SR15 uses two audio DAC chips for a Dual-DAC setup. These chips are known for their use in Home Hi-Fi systems which offer greater presence compared to the inferior DAC chips designed for mobile devices.

There are many devices that use DAC chips for audio processing, however, there are different tiers and quality of chips sought by Hi-Fi audio manufacturers to deliver an experience close to the original performance.

A&norma SR15 has adopted the MasterHIFI class DAC, CS43198 for the first time in a portable system. At Astell&Kern, they believe that true Hi-Fi should sound as close as possible to the original performance. The CS43198 is one of few DAC chipsets that is capable of bringing listeners even closer to the original when it's matched with the analog amp design of Astell&Kern. In result, it brings even more liveliness and warmth of sound without distortion.

Furthermore, A&norma SR15 supports native DSD bit-to-bit, and gets one step closer to the Hi-Fi system.

Cirrus Logic and Hi-Fi Audio Evolution

Cirrus Logic has built its reputation as an expert in audio IC (Integrated Circuit) chips and solutions for more than three decades and has established its distinguished recognition in the audio industry.

Specializing in low-power ICs for audio and voice signal processing applications, Cirrus Logic's products span the entire audio signal chain, from capture to playback, providing innovative products for the world's top smartphones, tablets, digital headsets, wearables, and emerging smart home applications. Now they have introduced the MasterHIFI chipset solutions for excellent audio reproduction performance. 

MasterHiFI class designation is only given to their chipsets that meet their highest audio performance standard. It will deliver your music as the musicians and producers wanted you to hear it.

An Evolving Legacy in High-Fidelity Audio

For more than three decades, Cirrus Logic has built its reputation as an expert in audio IC innovation. Cirrus Logic's audio innovation continues today with the development of MasterHIFI products from the industry's best audio IC design engineers. These integrated circuits, along with embedded software and DSP algorithms, are driving excellence in audio playback in new generations of mobile products.

Cirrus Logic audio products with the MasterHIFI designation meet the company's highest standard in high-fidelity audio playback. MasterHIFI products deliver the very best performance in sound clarity and pure, euphoric audio listening just like the artist intended. The devices should not unintentionally "color" the audio, but should maintain the “brightest” sounds expected from a recorded track.

Enhanced Audio Processing Power with Quad-core CPU

Some may think that only sound matters in Hi-Fi systems. While it does matter greatly, there are other factors that influence your immersive music experience as well. A&norma is designed to remove any distracting elements, including noise, distortion, and unintuitive user interface.

The Quad-core CPU gives you even more processing power for your digital music and a lot faster, natural UI experience. Get lost in your music without distractions.

24-bit, 192 kHz Bit-to-Bit Playback

The A&norma SR15 plays any resolution of digital files up to 24-bit/192 kHz, bit-for-bit. 
For 32-bit audio, downsampling is performed by the SRC (Sample Rate Converter) method. 
DSD is native up to 64 MHz and DSD 128 MHz is converted to PCM for playback.

USB Audio

A simple USB connection will allow the A&norma SR15 to be used as a digital music storage device and or pre-amp to output digital audio through USB. The A&norma SR15 transfers DSD in native format through DoP (DSD over PCM) and converts DSD to PCM for output for external USB Audio that do not support DoP.

New Intuitive User Interface

A&norma SR15 has adopted the user interface of the A&ultima SP1000, which has grown famous for its intuitiveness and simplicity.

Design Concept

A&norma SR15 was inspired by a composition of interconnected rectangles. The slight angle and precise, mindful alignment show the empty space and tones that fills the space. 

From any angle, or either hand you hold your device, it does not hinder the display screen and offers the best grip.

The rectangle on the front connects to the glass on the back plate. The rectangular reflection changes its shapes based on different angles of light creating 3-dimensional space.

AK Ripper MKII CD-Ripper

AK CD-RIPPER MKII, the second model of AK CD-RIPPER, seamlessly delivers CD music to the Astell & Kern player with a single touch. Maintaining previous models' stable performance, the new model supports an enhanced design for more complete ripping. Use your AK CD-RIPPER MKII for smooth, trouble-free ripping of CD music to the Astell & Kern player.


You can easily connect the AK CD-RIPPER MKII with Astell&Kern music players using the provided cable.

*The AK CD-RIPPER MKII may not be properly recognized when using a power supply adapter rated at less than 5V 2A.

Convenient Ripping

CD ripping is simple and convenient with the AK CD-RIPPER MKII.

By setting up the ripping options in advance, you can connect the AK CD-RIPPER MKII and simply touch the CD ripping icon to begin.

The connected Astell & Kern music player will access Gracenote's servers featuring the latest music data and automatically write the corresponding music information and album cover to the ripped music files. The user also has the option to manually enter metadata such as album title, artist, genre, and year of release for CD information that is not available on Gracenote.

Furthermore, the user can set the ripping speed (normal / fast / very fast) and file format (WAV / FLAC) through the settings menu.

*You can begin ripping CDs after connecting and then activating the AK CD-RIPPER MKII from the Notification Bar.

Design Concept

The AK CD-RIPPER MKII combines distinctively shaped components made of the best materials to ensure critical functions operate at the highest standards of performance.

The main body’s insertion slot for the CD is now a rectangular shape for a more vivid design and has an increased weight to effectively limit vibrations.

The triangular support damper under the body uses a spring structure to manage vibrations resulting from CD rotation so music lovers can enjoy error-free ripping.



A&norma SR15 Portable Music Player

  • Body material: Aluminum
  • Display: 3.3" WGA (480x800) TFT LCD
  • Supported formats: WAV, FLAC, WMA, Mp3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
  • Sample rate: PCM: 8kHz ~ 192kHz (8/16/24bits per sample)/DSD native: DSD64 (1bit 2.8MHz), stereo/DSD to PCM: DSD128 (1bit 5.6MHz)
  • Output level: Unbalanced 2.0Vrms/Balance 4.0Vrms (condition no load)
  • DAC: Cirrus Logic CS43198 x2 (dual DAC)
  • Decoding: Support up to 24bit/192kHz Bit to Bit decoding
  • Input: USB micro-B input (for charging & data transfer (PC & Mac))/connection mode: MTP (media device)
  • Outputs: Phones (3.5mm)/balanced out (2.5mm, only 4-pole supported)
  • Wi-Fi: 802.11 b/g/n (2.4GHz)
  • Bluetooth: V4.1 (A2DP, AVRCP, aptX HD)
  • Dimensions (W x H x D): 2.26" x 3.92" x 0.63"
  • Weight: 5.34 oz
  • Frequency response
    • ±0.030dB (condition: 20Hz ~ 20kHz) unbalanced/±0.024dB (condition: 20Hz ~ 20kHz) balanced
    • ±0.038dB (condition: 10Hz ~ 70kHz) unbalanced/±0.065dB (condition: 10Hz ~ 70kHz) balanced
  • Signal-to-noise ratio: 122dB @ 1kHz, unbalanced & balance
  • Crosstalk: 137dB @ 1kHz, unbalanced & balance
  • THD + N: 0.0008% @ 1kHz, unbalance/0.0009% @ 1kHz, balance
  • IMD SMPTE: 0.0004% 800Hz 10kHz (4:1) unbalance & balance
  • Output impedance: Balanced out 2.5mm (1.6 ohms)/phones 3.5mm (1.1 ohms)
  • Clock jitter: 45ps
  • Battery: 3,150mAh 3.7V Li-polymer battery
  • Built-in memory: 64GB
  • External memory: MicroSD (maximum 400GB) x1
  • Supported OS (Windows 7, 8, 10 (32/64-bit), MAC OS X 10.7 and up

AK Ripper MKII CD-Ripper

  • Body color: Gun metal
  • Body material: Aluminum
  • Dimensions (W x H x D): 5.87" x 5.87" x 1.92"
  • Weight: 2.79 lbs.
  • CD ripping audio format: WAV, FLAC

What's in the Box

What's in the Box

A&norma SR15 Portable Music Player

  • Manual

AK Ripper MKII CD-Ripper

  • Micro USB cable
  • USB type-C to micro USB cable
  • Micro 5-pin to micro 5-pin cable
  • Quick start guide
  • Warranty card


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dimensions, weight height width and depth?
robert m on Sep 26, 2019
  The Player: Dimensions (W x H x D): 2.26' x 3.92' x 0.63' Weight: 5.34 oz
The Ripper: Dimensions (W x H x D): 5.87' x 5.87' x 1.92' Weight: 2.79 lbs.