Astell&Kern SR25 MKII Hi Res Audio Player
Astell&Kern SR25 MKII Hi Res Audio Player
A&norma SR25 MKII
The Pocket Powerhouse
- Delivers superior sound through Astell&Kern’s latest advanced audio design technology.
- Support for native playback of DSD256 and 32-bit/384KHz PCM high-resolution audio, brings every music fan closer to hearing the artist’s original studio sound.
- Features 2.5mm, 3.5mm and 4.4mm output jacks to connect a wider variety of headphones.
- Equipped with a Quad-Core processor paired with a top-quality Dual Cirrus Logic CS43198 DAC for balanced and ultra-detailed sound.
- Boasts the latest high-definition 24-bit Bluetooth wireless codecs: LDAC and aptX™ HD.
- Replay Gain function uniformly adjusts volume playback from sound sources up to 24-bit/192 kHz.
Introducing A&norma SR25 MKII - the second-generation model of our award-winning entry-level player. Taking the much-loved original to the next level, this latest player improves on the audio performance, adds new features, such as a balanced 4.4mm headphone jack, and tweaks its already eye-catching and ultra-compact design. The A&norma SR25 MKII represents the perfect entry-point into Astell&Kern’s unrivalled world of high-resolution music playback on-the-move.
Superior sound
This new pocket powerhouse may have a familiar look and feel but it delivers superior sound through Astell&Kern’s latest advanced audio design technology. Presenting more detail than its predecessor, the natural high-resolution sonics deliver clearly defined upper and lower ranges and a deeper, more rounded sound. At the helm is a Quad-Core processor paired with a top-quality Dual Cirrus Logic CS43198 DAC
Included in the box
- 1x Astell&Kern A&norma SR25 MKII player
- 1x USB-C to USB-A cable (1 metre)
- 3x screen protectors
- 1x Quick start guide
Specification
| Model | SR25 MKII |
|---|---|
| Body Color | Mercury D. Sliver |
| Body Material | Aluminum |
| Display | 3.6inch HD (720 x 1,280) TFT LCD |
| Supported Audio Formats | WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA |
| Sample rate | PCM : 8kHz 384kHz (8/16/24/32bits per Sample) / DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo |
| Output Level | Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load) |
| CPU | Quad-Core |
| DAC | Cirrus Logic CS43198 x2 (Dual DAC) |
| Decoding | Support up to 32bit / 384kHz Bit-to-Bit Playback |
| Input | USB Type-C input (for charging PC & MAC) |
| Outputs | Unbalanced Out (3.5mm), Balanced Out (2.5mm, only 4-pole supported | 4.4m, only 5-pole supported) |
| Wi-Fi | 802.11 b/g/n (2.4GHz) |
| Bluetooth | V4.2 (A2DP, AVRCP, Qualcomm®aptXTM HD, LDAC) |
| Dimensions | 2.5 ”(63.5 mm) [W] x 4.26 ”(108.3 mm) [H] x 0.63 ”(16.1 mm) [D] |
| Weight | about 6.27 oz (about 178 g) |
| Feature Enhancements | Firmware upgrades supported (OTA) |
| Operating Temperature | 0? + 40? (32? 104?) |
| Frequency Response | ±0.014dB (Condition: 20Hz 20kHz) Unbalanced / ±0.011dB (Condition: 20Hz 20kHz) Balanced, ±0.10dB (Condition: 20Hz 70kHz) Unbalanced / ±0.12dB (Condition: 20Hz 70kHz) Balanced |
| Signal to Noise Ratio | 122dB @ 1kHz, Unbalanced / 124dB @ 1kHz, Balanced |
| Crosstalk | -138dB @ 1kHz, Unbalanced / -144dB @ 1kHz, Balanced |
| THD+N | 0.0006 @ 1kHz, Unbalanced / 0.0005 @ 1kHz, Balanced |
| IMD SMPTE | 0.0004 800Hz 10kHz(4:1) Unbalanced / 0.0003 800Hz 10kHz(4:1) Balanced |
| Output Impedance | Unbalanced Out 3.5mm (1.2ohm) / Balanced out 2.5mm (1.8ohm), 4.4.mm (1.7ohm) |
| Clock Jitter | 25ps(Typ) |
| Reference Clock | Jitter 70ps |
| Battery Capacity | 3,150mAh 3.7V Li-Polymer Battery |
| Continuous Playback Time | about 20hours (Standard : FLAC, 16bit, 44.1kHz, Unbalanced, Vol.50, EQ Off, LCD Off) |
| Charge Time | about 2.5hours (5V 2A General Charging) |
| Built-in Memory | 64GB [NAND] |
| External Memory | microSD (Max. 1TB) x1 |
| Supported OS | Windows 8,10 (32/64bit), MAC OS X 10.7 and up |