Astell & Kern - AK100 High-resolution portable music player

The Astell&Kern is the ultimate portable high-fidelity audio system capable of playing Mastering Quality Sound (MQS) from music mastering studios. MQS refers to all of the high resolution digital music recording studio formats up to 24-bit/ 44 – 192kHz. MQS delivers vast amounts of better music experience because MQS delivers 6.5 times of the detailed information in the same track.

Astell&Kern natively supports MQS (24-bit / 44 - 192kHz) which is the closest to the original sound that the original recording artist intended. Mastering Quality Sound (MQS) is an acronym of collective lossless & high-resolution audio source formats that typically comes encoded with 24bit, 44 to 192kHz of bit/sampling rates. Since MQS delivers about 6.5 times more detail than a conventional CD (16bit/44.1kHz), listeners can enjoy more a realistic music experience.

General Specifications

• Display: 2.4inch QVGA (320 x 240) IPS Touchscreen
• Supported Audio Formats: WAV, AIFF, FLAC, ALAC, APE, MP3, AAC, WMA, OGG
• Sample rate: WAV, AIFF, FLAC, ALAC : 8kHz ~ 192kHz (8/16/24-bits per sample)
• Output Level: 1.5Vrms (No Load)
• DAC: Wolfson WM8740 24-bit DAC (High-End Audio DAC)
• Decoding: Supports up to 24-bit / 192kHz Bit to Bit Decoding
• Charging Interface: Micro USB Type-B
• Interface: USB 2.0, OPTICAL IN/OUT, Headphone Out
• Dimensions: 2.33 ”(59.2 mm) [W] x 3.11 ”(79 mm) [H] x 0.57 ”(14.4 mm) [D]
• Weight: 4.3 oz (122 g)
• Feature Enhancements: Firmware upgrades supported

Audio Performance

• Frequency Response: 10Hz to 20kHz +/-0.02dB (24bit 48kHz, No Load)
• Signal to Noise Ratio: 110dB (1kHz 0dB, 24bit 48kHz, No Load)
• Crosstalk: -120dB (1kHz 0dB, 24bit 48kHz, No Load)
• THD+N: 0.0009% (1kHz 0dB, 24bit 48kHz, No Load)
• IMD SMPTE: 0.003% (24bit 48kHz, No Load)
• Output Impedance: 20 ohm

Clock Source

• Clock Jitter: 90ps

Battery

• Capacity: 2,000mAh 3.7V Li-Polymer Battery
• Continuous Playback Time: Up to 16 hours (Standard - MUSIC: FLAC, 16-bit, 44kHz, Volume 37, EQ Off, LCD Off)
• Charge Time: About 5 hours

Memory

• Built-in Memory: 32GB [NAND]
• External Memory: microSD (Max 32GB) x2

OS

• Supported OS: Windows XP, Windows Vista,7,8 (32/64bit), MAC OS X 10.6.5 and up