Description
This preamplifier is used for the audio signal input to the power amplifier when sound is small for the pre-amplification. It can provide an amplification of about 10, which is suitable for all small signal audio output devices (such as mp3, set-top boxes, LCD TVs, etc.) .). It can also be used as a simple headphone amplifier.
Input and output signals can use 3,5AUX interface design (IN-signal input, OUT-signal output)
Use the volume potentiometer design with power switch, turn clockwise to turn on----increase the volume / turn counterclockwise to decrease the volume----turn off.
It is recommended to use a linear power supply for the pre-amplifier, and Please do not try to use a switching power supply with large interference to avoid interference (current noise).
Power supply:
DC 8v-20v (12v linear power supply is recommended)
Package included:
1*Preamplifier board(without power adapter)