AK JR (已停產)

General Specifications

• Model
• Body Color
• Body Material
• Display
• Supported Audio Formats
• Sample rate
• Output Level
• DAC
• Decoding
• Input
• Outputs
• Bluetooth
• Dimensions
• Weight
• Feature Enhancements

• AK Jr
• Sleek Silver
• Aluminum
• 3.1inch WQVGA (240 x 400) 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 : DSD64 (1bit 2.8MHz), Stereo (DSD to PCM)
• 1.95Vrms
• Wolfson WM8740 x1 (Single DAC)
• Support up to 24bit/192kHz Bit to Bit Decoding
• USB Micro-B input(for charging & data transfer (PC & MAC))
  / Connection Mode : UMS(USB Mass Storage)
• PHONES (3.5mm)
• V4.0
• 2.08” (52.9 mm) [W] x 4.60” (117 mm) [H] x 0.35” (8.9 mm) [D]
• 3.28 oz (93 g)
• Firmware upgrades supported (F/W file copy)

Audio Performance

• Frequency Response
• Signal to Noise Ratio
• Crosstalk
• THD+N
• IMD SMPTE
• Output Impedance

• ±0.04dB (Condition: 20Hz~20kHz) / ±0.3dB (Condition: 20Hz~70kHz)
• 112dB @ 1kHz
• 120dB @ 1kHz
• 0.005% @ 1kHz
• 0.0006% 800Hz 10kHz(4:1)
• 2ohm

Clock source

• Clock Jitter

• 50ps (Typ)

Battery

• Capacity

• 1,450mAh 3.7V Li-Polymer Battery

Memory

• Built-in Memory
• External Memory

• 64GB [NAND]
• microSD (Max 64GB) x1

OS

• Supported OS

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