5: Can the 6.35mm headphone output port connect to the
microphone?
• no, the headphone interface is the signal output interface, not the
input interface.
6: Why does the volume of the machine stay the same,
while the sound of different audio sources (such as CDS
and mobile phones) is different?
• The output range of different types of audio source devices is
different, the mobile phone is usually 0.35mV, and the CD is
1V.The signal output amplitude of the sound source will directly
influence the volume.
7: Why there is no sound when PC-USB connects to PC?
• First press the PC-USB operation to confirm whether the digital
playback output has been selected. If still no sound, you can
restart the computer and repeat the operation again.
8: Why is it that all my wires are plugged in, but the RCA
analog output is silent?
• At this point, you should check to see if the headphone output is
plugged into the headphone or headphone adapter.If so, you
should unplug the headset or headphone converter to simulate
RCA output.
9: Why can't I find the bluetooth pairing name
• the machine is designed to be energy efficient and environmental
friendly. To use bluetooth, you must switch to bluetooth input
mode to search for pairing.
Frequently Asked Questions:
1: All the cables are connected, but no sound output?
• Check whether the display screen is bright or not. If the display
screen is still not bright after starting up, you can find an output
of the same voltage (must be 12V) in the test to determine the
machine failure or power failure.If the display screen is bright,
check whether the corresponding input signal is correctly
selected.
• If the indicator light is on, check whether the VOL knob is in the
minimum position. If so, turn clockwise to normal Volume
• If both of the above are normal, check the input device if it is
paused, mute, or the volume is minimized
2: Why does the sound is cracking ?
• This product is for the DAC decoder, but also can be used as
preamp, If post equipment is max volume & preamp too, it's easy
to distortion, you just need to turn down the volume of the
equipment, then ok.
3: Why do loudspeakers make a lot of electric noise?
• if you are not using the original factory standard power supply,
please replace the power supply before testing.Many power
supply in the market have large interference coefficient, which will
cause a lot of current sound.
4: Why the speaker has drone when I just plug in the input
cable but don’t connect the sound sources?
• If you use unshielded signal lines, there will be interference
signals entering the power amplifier. If you hate the sound, you
are advised to use the shielded signal lines or unplug the signal
lines.