Miscellaneous
53
User Guide
Specifi-
cations
AK320
PPM31
Gun Metal
Aluminum
4-inch WVGA (480x800) Touch Screen
WAV, FLAC, WMA, MP3, OGG, APE (Normal, High, Fast),
AAC, ALAC, AIFF, DFF, DSF
PCM : 8kHz ~ 192kHz (8/16/24bits per Sample)
DSD : DSD64, Stereo/ DSD128, Stereo
Unbalanced 2.2 VRMS / Balanced 2.3 VRMS (Condition: No Load)
AKM AK4490 x 2 (Dual DAC)
Support up to 24bit / 192kHz Bit to Bit Decoding
Type-B micro-USB Input (Charging & data transfer (PC & Mac)) /
Connection Mode: MTP (Media Device)
Phones (3.5 mm) / Optical Out (3.5 mm) /
Balanced Out (2.5 mm, only 4-pole supported)
802.11 b/g/n (2.4 GHz)
v4.0 (A2DP, AVRCP), aptX
2.95”(75.15 mm)[W] x 4.42”(112.4 mm)[H] x 0.64”(16.45 mm)[D]
7.65 oz. (217g)
Firmware Upgrade Supported (OTA)
±0.053dB (Condition: 20 Hz – 20 kHz) Unbalanced /
±0.053 dB (Condition: 20 Hz – 20 kHz) Balanced
±0.56 dB (Condition: 10 Hz – 70 kHz) Unbalanced /
±0.55 dB (Condition: 10 Hz – 70 kHz) Balanced
116 dB @ 1 kHz, Unbalanced / 117 dB @ 1 kHz, Balanced
130 dB @ 1 kHz, Unbalanced / 135 dB @ 1 kHz, Balanced
0.0008% @ 1 kHz, Unbalanced / 0.0007% @ 1 kHz, Balanced
0.0007% 800 Hz 10 kHz (4:1) Unbalanced /
0.0006% 800 Hz 10 kHz (4:1) Balanced
Balanced Out 2.5 mm (1 ohm) / Phones 3.5 mm (2 ohm)
30 ps (Typ.) / Reference Clock Jitter (VCXO Clock) 0.2 ps (Typ.)
0.2ps (VCXO Clock)
128GB[NAND]
microSD (Max. 128 GB) x 1
3,400 mAh 3.7 V Li-Polymer Battery
Windows XP, Windows 7,8,10 (32bit/64bit)
MAC OS X 10.7. and up
General Specifications
Product Name
Model
Body Color
Body Material
Display
Supported Audio
Formats
Sampling Rate
Output Level
DAC
Decoding
Input
Outputs
Wi-Fi
Bluetooth
Dimensions
Weight
Feature Enhancements
Audio Specifications
Frequency Response
S/N
Crosstalk
THD+N
SMPTE IMD
Output Impedance
Clock Jitter
Reference Clock Jitter
Storage Capacity
Built-in Memory
External Memory
Battery
Capacity
Supported OS
Supported OS
