Welcome to BuildAudioAmps

Relentlessly refining audio projects, finding new ways to push sound quality further—one carefully crafted circuit at a time.

About

Welcome to BuildAudioAmps—a DIY audio journey inspired by passion, quality, and the relentless pursuit of sonic excellence. Since its establishment in 2014, BuildAudioAmps has developed and built over 100 power amplifiers, preamplifiers, and other audio-related electronics projects. What started as a way of sharing my personal audio projects with fellow enthusiasts has grown into a resource for anyone who shares my passion. The audio projects were developed out of curiosity and refined through countless iterations while exploring the relationship between technical know-how and realworld listening experience.

BuildAudioAmps provides a solid foundation for starting an audio amplifier project—one that has been built, tested, and optimized through hands-on experimentation. Many DIYers have already shared their remarkable amplifier projects based on our published working prototypes, and BuildAudioAmps will continue to deliver no-nonsense, insightful, and engaging audio-related projects.

But BuildAudioAmps isn't just about building circuits. It's about refinement, iteration, and unlocking the full potential of high-fidelity sound reproduction. From RIAA preamp design to power amplifier innovation, every project is guided by precision, experimentation, and an uncompromising commitment to real-world listening excellence.

BuildAudioAmps legacy website remains accessible through the Wayback Machine on the Internet Archive, preserving a collection of amplifier projects, technical insights, and experiments that have sparked curiosity and collaboration in the audio community. Whether refining a circuit to make it sing or evaluating sonic characteristics beyond the numbers, the pursuit of audio perfection continues.

Resilience is a powerful force. Our dedication to high-fidelity audio and circuit refinement has likely inspired and educated many. Thank you to all who have supported the website for the past years.

Youtube

Watch more videos

Information and Policies

Information and Policies

Personal Safety

Working with live high-current voltages demands caution and respect. Every project shared on BuildAudioAmps involves hands-on experimentation, and safety should always come first.

  • Electrical Hazards: Proper insulation, grounding, and protective gear are essential when working with high-voltage circuits.
  • Testing & Handling: Always double-check connections, power ratings, and system integrity before applying the required power to any circuit.
  • Emergency Precautions: Try not to work alone when dealing with live voltages—having a second person present can be lifesaving in case of an unexpected incident.

Warning for Beginners

If you’re new to electronics, make sure you understand the basics before attempting any DIY audio project. Learn fundamental electrical and electronics concepts, including reading schematics, identifying component values with their color codes and soldering techniques.

When you feel confident in these basics, you're welcome to explore the website and begin your first audio power amplifier project. Your safety depends on your knowledge.

Liability Disclaimer

BuildAudioAmps (BAA) provides technical information for educational and personal use. However, BAA is not responsible for any damages, injuries, or accidents resulting from negligence, improper handling, or misinterpretation of the shared projects. It is the sole responsibility of the DIYer to follow appropriate safety procedures when working with high-voltage electronics.

Usage Policy

BuildAudioAmps was founded on the principle of free knowledge-sharing. Every project is offered for personal use—whether for learning, experimentation, or pure enjoyment.

  • Non-Commercial Use: The designs, schematics, and insights shared here are not intended for commercial reproduction or resale.
  • Respect for Open Sharing: Modifying and improving these designs is encouraged, but the spirit of free access should remain intact.
  • Community Ethos: Engaging with fellow DIYers and exchanging insights helps keep innovation alive—sharing ideas without commercial intent preserves the integrity of the platform.

Copyright & Usage Disclaimer

All projects, schematics, and technical insights shared on BuildAudioAmps are provided for personal use only—not for commercial reproduction or resale. The website was founded on the principle of free knowledge-sharing, and using these designs for commercial purposes goes against that philosophy.

Copyright-Free Personal Use

  • You are welcome to use, modify, and build any of the projects for your personal enjoyment and learning.
  • Sharing insights and improvements with the community is encouraged, but all designs must remain freely accessible.
  • Reproducing these projects for profit or mass production violates the spirit of open DIY collaboration.

Respecting Open Sharing

While BuildAudioAmps does not claim formal copyrights on its published designs, all content remains under the ethical framework of non-commercial, community-driven sharing. If you build upon these projects, consider crediting BuildAudioAmps and maintaining the free spirit of knowledge exchange.

By using this website and its resources, you acknowledge these principles and agree to respect the non- commercial, educational intent of BuildAudioAmps.

Projects

...
...
...
...
...
...
View more projects

Archived Projects

A very simple 50-watt audio power amplifier. The project features differential input stage and paralleled power output transistors for handling low impedance 4Ω loads. Maximum recommended power supply is ±45VDC.

Another simple circuit that features manual adjustment to the DC offset voltage. The prototype uses 3 pairs of complementary power output transistors 2SC5200/2SA1943 or 2SC5242/2SA1962. The power amp is capable of providing 80 watts to an 8Ω load with ±45VDC power supply.

Another simple 75-watt audio amplifier circuit but the audio quality is surprisingly good. The introduction of current source circuits improves the sonic quality of this project. The recommended power supply is ±35VDC.
View more projects

Contact

Copyright © BuildAudioAmps 2025