AK300 (停產)

General Specifications

• Model：AK300
• Body Color：Midnight Black
• Body Material：Aluminum
• Display：4inch WVGA (480 x 800) Touchscreen
• Supported Audio Formats：WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
• Sample rate：PCM : 8kHz ~ 192kHz (8/16/24bits per Sample) DSD : DSD64, Stereo / DSD128, Stereo
• Output Level：Unbalance 1.98Vrms / Balance 1.98Vrms (Condition No Load)
• DAC：AKM AK4490 x1 (Single DAC)
• Decoding：Support up to 24bit / 192kHz Bit to Bit Decoding
• Input：USB Micro-B input (for charging & data transfer (PC & MAC))
  / Connection Mode : MTP (Media Device)
• Outputs：PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
• Wi-Fi：802.11 b/g/n (2.4GHz)
• Bluetooth：V4.0 (A2DP, AVRCP, aptX)
• Dimensions：2.95 ”(75.15 mm) [W] x 4.42 ”(112.4 mm) [H] x 0.60 ”(15.45 mm) [D]
• Weight：7.23 oz (205 g)
• Feature Enhancements：Firmware upgrades supported (OTA)

Audio Performance

• Frequency Response：±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance
  ±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
• Signal to Noise Ratio：116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance
• Crosstalk：130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
• THD+N：0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
• IMD SMPTE：0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance
• Output Impedance：Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)

Clock source

• Clock Jitter：30ps(Typ)
• Reference Clock Jitter：200 Femto Seconds

Battery

• Capacity：3,100mAh 3.7V Li-Polymer Battery

Memory

• Built-in Memory：64GB [NAND]
• External Memory：microSD (Max 128GB) x1

OS

• Supported OS：Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up