Description:
When the sound is low, the preamplifier is used for the audio signal input to the power amplifier. It can provide an amplification of about 10, which is suitable for all small signal audio output devices.
It can also be used as a simple headphone amplifier. Input and output signals can use 3,5AUX interface design .
Use the volume potentiometer design with a 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 preamplifier, and do not try to use a switching power supply with large interference to avoid interference .
The preamplifier is available in AD828 version and NE5532 version.

power supply:
8v-20v

Package Included:
1 *Preamplifier board

notes:
Due to manual measurement, please allow a deviation of 1-10 mm.
Due to the difference in light and screen, the color of this item may be slightly different from the picture.
Digital Power Amplifier with AUX/USB/Bluetooth/Flash Drive/PC Sound Card Input