Our website:
www.fosiaudio.com
Amazon store:
www.amazon.com/fosiaudio
Our Youtube channel:
Fosi Audio
Our Facebook page:
Fosi Audio
After-sale Service and Technical Support Email:
support
@
fosiaudio.com
fosiaudio
@
hotmail.com
Warranty Information
All Fosi Audio products have an 18-month limited warranty on parts
and labor from the date of purchase. Please contact us if you have
any problems.
About Fosi Audio
Fosi Audio designs and builds innovative audio products with all
your music in mind. Great sound, simple but elegant designs,
high-quality materials, and truly useful features are what Fosi Audio
is about. We sincerely hope you get as much enjoyment from our
products as we’ve had to create them!
Fosi Audio Product’s User Manual
A:
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.
Q: Why does the amplifier stop working after a period of
time? After a period of time off, it was working again
A:
Usually in this case, the amplifier is overheating protection, and
the output power may have exceeded the designed power, so
you can lower the volume a little and try again.
Q: 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?
A:
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.
Q: Can this amp be left on all the time?
A:
It can be connected all the time and it is safe without power
consumption.
Q: Why the sound of the power amplifier is not very good
at the beginning, the high frequency is not clear, but after
working for 8 hours the sound is normal?
A:
Speaker and amplifier is a very sensitive equipment, also need
to know each other, and the matching process, usually the
sound will be good after the new power amplifier and the
speaker work more than ten hours.
Any problems please leave a message to the customer
support email address: