Astell&Kern A&norma SR25 MKII High-Resolution Digital Audio Player DAP

High-Resolution DAP Digital Player

Astell&Kern A&norma SR25 MKII is a high-resolution DAP digital player that delivers detailed sound, allowing for the clear expression of every instrument and vocal note.
Astell&Kern A&norma SR25 MKII offers more versatile connectivity options with the addition of a 4.4mm balanced output for the first time in an A&norma player, LDAC, as well as Qualcomm® aptX™ HD, which support and deliver true audiophile sound quality.
Astell&Kern A&norma SR25 MKII offers improved performance across the board compared to the SR25, including bass response, dynamic range, soundstage, imaging, and more.
Astell&Kern A&norma SR25 MKII utilizes Astell&Kern's latest audio design technology for clear and natural high-resolution sound with more clearly defined upper and lower ranges, providing listeners with deeper and more rounded sound.
Bit-to-Bit playback is available in models up to SR25 MKII 32-bit 384 kHz. Native DSD audio is available up to 11.2 MHz, for uncompressed sound quality, staying true to the artist's original intention, in high resolution and with minimal distortion.
With seamless playback performance supporting native DSD256 up to 32-bit/384 kHz, you can derive even more pleasure from your music.
Astell&Kern A&norma SR25 MKII supports a 4.4mm balanced output. With 2.5mm, 3.5mm, and 4.4mm output options, an even wider variety of devices can be connected. The 4.4mm balanced output offers improved dynamic range and bass response, supports a wide soundstage, provides sharp imaging, and captures the smallest details in the audio source.
Astell&Kern A&norma SR25 MKII has gone a step further by applying a highly conductive hyper-pure silver plating on existing shields for perfect shielding that provides excellent audio performance.
Astell&Kern A&norma SR25 MKII can operate continuously for 20 hours on a single full charge, thanks to its optimized energy-efficient circuitry.
The new BT Sink function connects Astell&Kern A&norma SR25 MKII to an external device via Bluetooth, similar to connecting a smartphone to a BT speaker.
With the new AK File Drop function in the Astell&Kern A&norma SR25 MKII, you can freely transfer files wirelessly via a PC, smartphone, or FTP program on the same network.

Specifications

• 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% at 1kHz, Unbalanced / 0.0005% at 1kHz, Balanced
• IMD SMPTE: 0.0004% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz(4:1) Balanced
• Output Impedance: Unbalanced 3.5mm (1.2 ohms) / Balanced 2.5mm (1.8 ohms), 4.4mm (1.7 ohms)
• Body Material: Aluminum
• Display: 3.6-inch HD (720 x 1,280) TFT LCD.
• Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
• Sampling Rate: PCM 8 kHz ~ 384 kHz (8/16/24/32 bits per sample) / Native DSD DSD64 (1 bit 2.8 MHz), Stereo / DSD128 (1 bit 5.6 MHz), Stereo / DSD256 (1 bit 11.2 MHz), Stereo
• Output Level: Unbalanced 2Vrms / Balanced 4Vrms (no load condition)
• CPU: Quad-core
• DAC: Cirrus Logic CS43198 x2 (Dual DAC)
• Supports decoding up to 32 bit / 384 kHz Bit-To-Bit Playback
• Input: USB Type-C Input (for PC and MAC charging)
• Outputs: Unbalanced (3.5mm), Balanced (2.5mm, 4-pole supported only | 4.4mm, 5-pole supported only)
• Wi-Fi: 802.11 b/g/n (2.4 GHz)
• Bluetooth: V4.2 (A2DP, AVRCP, Qualcomm®aptXTM HD, LDAC)
• Feature Enhancements: Firmware updates supported (OTA)
• Operating Temperature: 0℃ ~ + 40℃ (32℉~ 104℉)
• Clock Jitter: 25ps (typical)
• Reference Clock Jitter: 70ps
• Battery Capacity: 3,150 mAh 3.7 V lithium polymer battery
• Continuous Playback Time: Approximately 20 hours (Standard: FLAC, 16 bit, 44.1 kHz, Unbalanced, Vol.50, EQ off, LCD off)
• Charging Time: Approximately 2.5 hours (General 5V 2A charging)