PPA v1 Amplifier Board

PPA, mostly populated

The PPA is ppl's Portable Amplifier. ppl has been building and advocating Jung multiloop type buffered headphone amp designs for a long time.

You can think of the PPA as a major extension of the design concepts that lead to the META42 plus some that appeared in previous ppl amps and some new ones we've pioneered for the PPA. By using a larger board than we allowed for the META42, we have been able to exceed the META42's performance considerably.

We later replaced this design with a newer version primarily featuring a discrete buffer design, plus other improvements.

The pre-made boards are no longer available, but the design files are published below if you want to go and make your own.


Where to Next?

View the PPA v1 Amplifier Schematic
View the PPA v1 PCB Layout
Download the PPA ExpressPCB Design Files
Part Lists
Part Selection Guide
Step-by-Step Assembly Guide
Bass Boost Calculator
Electronics Calculators
Official PPA Site

  Part Lists >>
Go back to The PPA Project Go to my home page