AK240
General Specifications
  • Model
  • Body Color
  • Body Material
  • Display
  • Supported Audio Formats
  • Sample rate
  • Output Level
  • DAC
  • Decoding
  • Input
  • Outputs
  • Wi-Fi
  • Bluetooth
  • Dimensions
  • Weight
  • Feature Enhancements
  • AK240
  • Gun Metal
  • Aircraft Grade Duralumin
  • 3.31inch WVGA (480 x 800) AMOLED Touchscreen
  • WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
  • FLAC, WAV, ALAC, AIFF : 8kHz ~ 192kHz (8/16/24bits per Sample)
    / DSD Native : DSD64 (1bit 2.8MHz), Stereo / DSD128 (1bit 5.6MHz), Stereo
  • Unbalance 2.1Vrms / Balance 2.3Vrms (Condition No Load)
  • Cirrus Logic CS4398 x2 (Dual DAC)
  • Support up to 24bit/192kHz Bit to Bit Decoding, DSD64/128
  • USB Micro-B input (for charging & data transfer (PC & MAC))
    / Connection Mode : MTP (Media Device)
  • PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
  • 802.11 b/g/n (2.4GHz)
  • V4.0
  • 2.59 ”(66 mm) [W] x 4.21 ”(107 mm) [H] x 0.68 ”(17.5 mm) [D]
  • 6.5 oz (185 g)
  • Firmware upgrades supported (OTA)
Audio Performance
  • Frequency Response
  • Signal to Noise Ratio
  • Crosstalk
  • THD+N
  • IMD SMPTE
  • Output Impedance
  • ±0.023dB (Condition: 20Hz~20kHz) Unbalance & Balance
    / ±0.3dB (Condition: 10Hz~70kHz) Unbalance & Balance
  • 116dB @ 1kHz, Unbalance / 117dB @ 1kHz, Balance
  • 130dB @ 1kHz, Unbalance / 135dB @ 1kHz, Balance
  • 0.0007% @ 1kHz, Unbalance / 0.0005% @ 1kHz, Balance
  • 0.0004% 800Hz 10kHz(4:1) Unbalance / 0.0003% 800Hz 10kHz(4:1) Balance
  • Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock source
  • Clock Jitter
  • 50ps (Typ)
Battery
  • Capacity
  • 3,250mAh 3.7V Li-Polymer Battery
Memory
  • Built-in Memory
  • External Memory
  • 256GB [NAND]
  • microSD (Max 128GB) x1
OS
  • Supported OS
  • Windows XP, Windows 7,8 (32/64bit), MAC OS X 10.7 and up