Enjoying music

While succeeding the state-of-the-art DAC and scalability as applied to the AK380 and AK320, the latest model has improved accessibility by being priced at a reasonable level.

AK4490’s Single DAC-DAC, DSD-to-PCM Playback, Parametric EQ with 20bands 0.01dB, 200 Femto Second VCXO Reference Clock,
Exceptional Expandability, DLNA-based AK Connect App and Metal Touch Sensor Home Button

Specification
General Specifications
Model AK300
Body Color Midnight Black
Body Material Aluminum
Display 4inch WVGA (480 x 800) Touchscreen
Supported Audio FormatsWAV, 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
InputUSB Micro-B input (for charging & data transfer (PC & MAC)) / Connection Mode : MTP (Media Device)
Output PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Wi-Fi 802.11 b/g/n (2.4GHz)
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 EnhancementsFirmware 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 SMPTE0.0007% 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 256GB) x1
OS+Supported OSWindows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up

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