QPM Specification - Questyleshop

QPM Specification

  • Audio Formats Supported:
    WAV,FLAC,WMA,MP3,OGG,APE (Normal/High/Fast),AAC, ALAC,AIFF,DFF,DSF
  • PC OS Requirements for being Used As A Portable DAC:
    Windows XP / Windows 7/8/10 (32/64Bit) / iOS11/Mac OS X 10.7 or late
  • Sample Rate:
    PCM 32kHz – 384kHz (16/24/32Bit)
    DSD Native: DSD64(1Bit 2.8MHz),
    DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)
  • Memory:Internal: 64GB;
    External: Micro SD card (Max. 2TB) x 1
  • DAC:AKM AK4490
  • Battery :3100mAh, 3.7V Li-Polymer battery, 10 hours of battery life
  • Sample Rate:
    PCM 32kHz – 384kHz (16/24/32Bit)
    DSD Native: DSD64(1Bit 2.8MHz),
    DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)
  • Display:IPS 2.4″ (Sharp LCM)
  • Outputs:
    Headphone out(3.5mm)/Optical out(3.5mm)
    /Full balanced out(4.4mm)
  • Operating System:Linux
  • Output Amplitude:
    3.5mm headphone jack: 1.9Vrms, RL=300Ω; 1.5Vrms, RL=32Ω
    4.4mm headphone jack: 3.9Vrms, RL=300Ω; 2.3Vrms, RL=32Ω
  • Body Material:CNC machining aluminum, available in Black, 3D glass
  • Max Output Power:
    3.5mm headphone jack: RL=32Ω, Po=74mW; RL=300Ω, Po= 13mW
    4.4mm headphone jack: RL=32Ω, Po=161mW; RL=300Ω, Po=51mW
  • Dimension:65[W] x 134[H] x 14.5[D] (mm)
  • Frequency Response:±0.17dB(20Hz – 20kHz)
  • Output Impedance:0.1Ω
  • S/N:3.5mm headphone jack: 108dB; 4.4mm headphone jack: 110dB
  • THD+N:
    3.5mm headphone jack:
    0.00055%@13mW(0dBFS 1kHz@48kHz 24Bit), RL=300Ω
    4.4mm headphone jack:
    0.00049%@51mW(0dBFS 1kHz@48kHz 24Bit), RL=300Ω

 

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