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User Guide
Specifi-
cations
General Specifications
Product Name
AK380
Model
PPF21
Body Color
Body Material
Aircraft Grade Duralumin
Display
4inch WVGA(480x800) Touch Screen
Supported Audio
WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast),
Formats
AAC, ALAC, AIFF, DFF, DSF
Sampling rate
FLAC, WAV : 8kHz ~ 384kHz (8/16/24/32bits per Sample) /
ALAC, AIFF: 8kHz ~ 192kHz (8/16/24bits per Sample)
DSD Native: DSD64(1bit 2.8MHz), Stereo/ DSD128(1bit 5.6MHz), Stereo
Output Level
Unbalance 2.2 Vrms/ Balance 2.3 Vrms (Condition No Load)
DAC
AKM AK4490 x 2(Dual DAC)
Decoding
Support up to 32bit / 384kHz 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)
Dimensions
?" (79.8 mm)[W] x ?" (112.4 mm)[H] x ?" (17.5 mm)[D]
Weight
7.68 oz. (218g)
Feature Enhancements
Firmware upgrade supported(OTA)
Audio Specifications
Frequency
±0.053dB (Condition: 20Hz~20kHz) Unbalance /
Response
±0.053dB (Condition: 20Hz~20kHz) Balance
±0.56.dB (Condition: 10Hz~70kHz) Unbalance /
±0.55.dB (Condition: 10Hz~70kHz) Balance
S/N
116dB @ 1kHz, Unbalance/ 117dB @ 1kHz, Balance
Crosstalk
130dB @ 1kHz, Unbalance/ 135dB @ 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 Jitter
30ps(Typ) / Reference Clock Jitter (VCXO Clock) 0.2ps(Typ)
Memory
Built-in Memory
256GB[NAND]
External Memory
microSD (Max. 128GB) x 1
Battery
Capacity
3,400mAh 3.7V Li-Polymer Battery
Supported OS
Supported OS
Windows XP, Windows 7,8(32/64bit)
MAC OS X 10.7. and up
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Miscellaneous
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