The Astell & Kern A&norma SR15 is a feature-rich, compact dual-DAC, digital audio player that sounds fantastic and is actually small enough to be portable.
It also lets you stream Tidal, Spotify, Quboz and many more music services through WiFi so you have a practically limitless music catalog.
The Astell & Kern SR15 works with all of the following music services:
It supports 24bit 192kHz bit to bit play and has native support for DSD files. It can even be used as a preamp for digital audio over USB.
Its body is made from machined aluminum and is feels solid and well-crafted in the hand.
It has 64GB of onboard storage which can be expanded to 400GB with a MicroSD card.
It sports a quad-core CPU which delivers processing power to spare. The power is also evident when navigating the snappy user interface.
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 industrial design is cutting-edge with a screen that is set at a diagonal and the volume wheel sticks out just the right amount with excellent tactile response when adjusting the volume.
|Body Color||Dark Gray|
|Display||3.3 inch WVGA (480 x 800) TFT LCD|
|Supported Audio Formats||WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA|
|Sample Rate||PCM 8kHz (8/16/24 bits per sample) DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD to PCM : DSD128(1bit 5.6MHz)|
|Output Level||Unbalanced 2.0Vrms / Balanced 4.0Vrms (Condition No Load)|
|DAC||Cirrus Logic CS43198 x2 (Dual Dac)|
|Decoding||Supports up to 24bit / 192 kHz Bit to Bit Decoding|
|Input||USB Micro-B input for charging and data transfer (PC & MAC) / Connection Mode : MTP (Media Device)|
|Outputs||3.5mm and 2.5mm Balanced Out (only 4-pole supported)|
|Wi-Fi||802.11 b/g/n (2.4GHz)|
|Bluetooth||Version 4.1 (A2DP, AVRCP, aptX HD)|
|Dimensions||2.26" x 3.92" x 0.63"|
|Weight||Approximately 5.43 oz|
|Feature Enhancements||Firmware upgrades supported (OTA)|
|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 and Balanced|
|Crosstalk||137dB @ 1kHz, Unbalanced and Balanced|
|THD+N||0.0008% @ 1kHz, Unbalanced / 0.0009% @ 1kHz, Balanced|
|IMD SMPTE||0.0004% 800Hz 10kHz (4:1) Unbalanced and Balanced|
|Output Impedance||Balanced Out 2.5mm (1.6ohm) / 3.5mm (1.1ohm)|
|Clock Jitter||70ps (Typ)|
|Capacity||3,150mAh 3.7V Li-Polymer Battery|
|Built-in Memory||64GB [NAND]|
|External Memory||MicroSD (Max 400GB) x1|
|Supported OS||Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up|
Support & Manuals
Astell & Kern SR15 Warranty information
All Astell & Kern digital audio players are protected by a 1-year limited warranty. Here are the details directly from Astell & Kern: Astell & Kern Warranty. If you have any warranty questions, reach out to our support team at firstname.lastname@example.org