QA662 User Guide
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3.Specifications and Parameters
3.1 Parameters
Input Voltage
AC110V/220V (factory preset, please refer to the voltage
marked on the machine).
Machine Power
Consumption
< 30W when working; and <1W when standby.
Output Format
S/PDIF up to 24Bit/192kHz, DoP64; and I2S connector up to
32Bit/384kHz, DSD512.
Bluetooth input: Fixed output 24Bit/88.2kHz.
WCK Output
TTL level, Impedance 50 Ohm.
10MHz Clock
Input
Level 0.5-3.3V, Impedance 50 Ohm.
Fuse
Slow blow 1A, 5mm*20mm.
AES Connector
Standard
U.S.standard (1-ground, 2-hot, 3-cold).
3.2 SD Card Parameters
Support up to 512G, FAT32 and ExFAT format. For better audio quality and
stability, it is recommended to use SanDisk high-speed card (Extreme or Extreme
Pro) and to format it as FAT32 format.
The upper limit for the machine to read from SD card is: 3 levels of folders;
2048 total folders; 752 single level folders; and 12288 total songs.
For some music formats, it demands high continuous stability of SD card
reading speed, and substandard SD card may cause playback stuttering or crash,
so please use the recommended SD card. At the same time, too much
fragmentation of the SD card can also cause the above problems, so it is
recommended to use Panasonic formatting software SDFormatter to perform
overwrite formatting, and then use DiskGenius software to format to FAT32
format.