DigiAMP is a HAT compliant add on accessory for the Raspberry Pi. DigiAMP uses the Texas Instruments TAS5756M PowerDAC to deliver direct connection to PASSIVE stereo speakers at up to 2x35wpc with variable output. Ideal for a Pi based HiFi. DigiAMP can be connected to the Raspberry Pi A /B /RPi2/RPi3 or RPi4’s 40way pin header without any additional soldering. DigiAMP must be powered from an external supply and requires a 1 2 to 24DC power source tooperate. DigiAMP s barrel connector is 5.5mmx2.5mm. DigiAMP has been designed to provide power to the Raspberry Pi and DigiAMP combination in parallel, delivering 5.1v 2.5Amp to the Pi.DO NOT APPLY POWER TO THE RASPBERRY PI’s OWN POWER INPUT WHEN USING DIGIAMP .The amplifier is by default muted at power on (mute LED lit). The mute state LED is under softwarecontrol (Raspberry Pi GPIO22).P5 Alternative power input for hard wired installations. POLARITY MUST BE OBSERVED!P8 TAS5756m Internal GPIO1/2/3What’s in the box?1 x RPi DigiAMP plus