Astell&Kern A&ultima SP4000 Specifications

  • Operating System (OS):
    Full Android OS with Google Play Support

  • User Interface:
    Astell&Kern UI 4.5

  • Op-Amp Configuration:
    Dual op-amps in parallel configuration

  • DAC Configuration:
    4x AK4191 digital processor and 4x AK4499EX analog DAC

  • Bluetooth Codecs Supported:
    aptX Adaptive / LDAC support

  • DAR (Digital Audio Remaster) Technology:
    2nd generation DAR technology

  • ESA (Enhanced Signal Alignment) Technology:
    Yes – Enhanced Signal Alignment (ESA) Technology

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