This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

Power Amplifier project by Nelson Pass

Amp Camp Amp Mini

"My goal was to make a nice little class A amplifier that brings some interesting circuit design elements but at a much lower cost, while still appealing to more sophisticated audiophiles." - Nelson Pass

Amp Camp Amp Mini

Amp Camp Amp Mini

From $ 25.00 USD
3 options

Key Information

  • Power Amplifier Project
  • Designed by Nelson Pass
  • Beginner Difficulty
  • Complete Kit Available
  • Comprehensive Build Guide


  • Class A design
  • Based on the incredibly popular Amp Camp Amp
  • No chassis required


The ACA Mini has become one of the top recommendations as an answer to the question "What amplifier should I build first?".  The entire project can be completed in an afternoon or two.  It's perfect for dorm rooms, small spaces, dens, listening rooms, and everything in-between.

The Complete Build Guide and the full kit with all the parts you need, make this project accessible to almost everyone with a soldering iron and some basic tools.

And... it sounds pretty fabulous too.

Pair it with an ACP+ for an absolutely amazing headphone amp, pre-amp, amplifier combination / mini-system.

Learn more and discuss the ACA Mini in the DIY ACA Mini thread at diyAudio.