ProtoDAC TDA1387 X8 project

[hifinet]

The ones that I am aware of in a HAT format are the JustBoom Amp, HiFiBerry Amp2, Allo Volt Amp using TI TPA3118. HiFiBerry AAMP60 using TPA3128 and capable of 60W. HiFiBerry Amp3 using the MA12070 also 60W capable. There are probably others. Of course, they require an external power supply up to the task to get the rated output (75W+).

I just picked up a JustBoom Amp for $20 at the PiShop.us . The layout is a little off to integrate as a HAT with ProtoDAC, when oriented with the GPIO cutout on the Amp. The analog signal input is on the opposite end of the PCB, near the USB/Ethernet end. It was designed to integrate with their DAC HAT. You would probably orient the other way so the ProtoDAC outputs are near the analog input of the Amp. It does have 5V/GND pads near the GPIO cutout,  so it can back power ProtoDAC and the RPi. I was planning to use it stand alone mounted on a thick piece of aluminum plate as a base for additional cooling.