DOUK AUDIO DSD256 Mini HiFi Preamp Digital Audio USB Player Instruction Manual
- June 16, 2024
- Douk Audio
Table of Contents
DSD256 Mini HiFi Preamp Digital Audio USB Player
Instruction Manual
Thank you very much for choosing our products!Please read this manual carefully before using the product.
Front and rear panel description
- VU level meter(L)
- Display
- Infrared receiving window
- VU level meter(R)
- On/off/confirm/play/pause (short press: turn on /confirm/pause/play,long press to turn off)
- Previous song(Long press: the song moves backward quickly)
- Next song(Long press: the song moves forward quickly)
- Return
- Menu key
- SD card input
- U disk/hard disk input
- Optical output
- Coaxial output
- RCA output (red/right channel, white/left channel)
- AUX output
- Power interface (DC voltage shall not be higher than 12V)
Operation steps
- Connect the rear stage equipment be used to the corresponding output port.
- Connect the SD card or U disk/hard disk to the sound source input port.
- Connect the power supply (DC voltage shall not be higher than 12V).
- Start and select the corresponding input audio source to play the song.
- Use the remote control to adjust the appropriate volume.
- Press the menu key briefly to set the appropriate effect.
Remote control function description
- On/off
- Display screen off/on
- Input Selection
- Up
- Menu
- Return
- OK/Play/Pause
- Down
- Volume-
- Volume+
- Previous song
- Next song
- Disk/list/single track cycle and random play switch key
Description of screen display
Play main page：
A ………… Song name and file format display
B ………… Song playing progress display
C ………… Song playing time display
D ………… Total song time display
E ………… Sampling rate and bit rate display
F ………… U disk/Hard disk input display
G ………… Cycle mode display
H ………… Playback status display
I ………… Volume level display
Menu function display:
A…………Volume level display
B…………Input Source Selection
C…………Cycle mode selection
D…………Pointer of VU meter, selected according to the swing of internal audio
source signal and external sound signal
E…………Screen brightness adjustment
F…………Chinese and English display selection
Specification parameter
Supported music file formats and maximum sampling rate| File system| Multi
partition not supported
---|---|---
WAV| 384KHz/32Bit| MP3| 48KHz/16Bit| Firmware update| Support USB flash disk
upgrade
FLAC| 192KHz/24Bit| ISO| DSD256| Format of hard disk| FAT32，exFAT
APE| 48KHz/16Bit| DSF| DSD256| Capacity of hard disk| Maximum 2TB
DFF| DSD256| DTS| Output front left and front right channels| Capacity of USB
flash disk and SD card| Maximum 512G
CUE Play| Support WAV,APE,FLAC| USB Interface| Support USB3.0 and below
SPDIF Output| Maximum 192KHz 24Bit/DOP64| SD Interface| Supports CLASS10 and
above
Analog output level| 2Vrms| Package size| 0.95kg
Working voltage| DC12V| Package weight| L280W210H80mm
FQA
Q: All my cables are connected, but there is no sound output?
A: 1.Check whether the screen lights up and the sound source is correctly connected. 2. Check whether the rear stage connection is correct and whether the volume is at the minimum. 3. If all the above are normal, check whether the machine is paused or the volume is at the minimum. 4. Digital output, supporting up to 192KHz/32Bit sampling rate.
Q: Why is the sound distorted?
A: If the volume of the machine is turned on to the maximum and the volume of the subsequent equipment is also turned on to the maximum, it is easy to be distorted. At this time, just turn down the volume of the machine or the subsequent equipment.
Q: Why does the horn make a loud current sound?
A: If you use a power supply other than the original standard one, please replace the power supply before testing. Many power supply ripple interference coefficients on the market are large, which will cause a lot of current noise.
Q: Why does the speaker make a loud buzzing sound when I plug in the input cable and do not connect the playback source?
A: When the unshielded signal line is used for no-load, interference signals will enter the power amplifier for amplification. It is recommended that you replace it with a shielded signal line or unplug the signal line.
Q: Why is there no sound from optical fiber and coaxial output when playing DSD files or PCM192KHz above audio sources?
A: Since the coaxial fiber is the original code output, it does not support the transmission of DSD signals and signals above PCM192K, so there is no sound.
Q: Why do the left and right VU meters jump differently?
A: The two VU tables correspond to the left and right channel sound sources respectively. When the swing is inconsistent, The bottom adjustable resistor can be slightly adjusted.
Q: Why can't the optical fiber and coaxial output adjust the volume?
A: Coaxial and optical fiber are the original code output of composite digital signals; volume adjustment is not supported. It is recommended to adjust the volume of the rear stage equipment.
Warning！
- Please do not open the machine shell. Improper operation may cause electric shock hazard.
- Please use the switching power supply of the regular manufacturer, otherwise there will be the risk of damaging the machine.
- Please do not operate the machine in high temperature or humid environment.
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