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IRS2092S BTL ProjectAmplifiers

IRS2092S BTL Project

This project demonstrates the modern BTL approach using dual IRS2092S PCAs, matched, thermally stable, and tuned for differential operation. The BTL implementation keeps the output power benefits—2× the voltage swing and 4× the theoretical power from the same rails, and at the same time eliminating the return-energy imbalance that caused bus-pumping in early Class-D modules.
Project 65Amplifiers

Project 65

Project 65 is the fourth in the series of audio power amplifier projects that uses an op-amp in the front-end stage of the amplifier. The CFA-based op-amp input stage is connected to a full complementary hybrid compound feedback pair output stage. The implementation of BJT drivers and MOSFET power output devices is sometimes referred to as a hybrid design. The schematic diagram of this amplifier is similar to the Alexander CFA power amplifier and Exicon MOSFET’s application notes.
Project 64Amplifiers

Project 64

Project 64 is the 3rd in the series of audio power amplifier projects that uses an Operational Amplifier (op-amp) in the front-end input stage of the amplifier. Currently, there are more than 10 built amplifier projects in this same series. Project 64 is based on the Alexander current feedback amplifier design and the Exicon’s MOSFET high performance amplifier application notes.

BuildAudioAmps  

BuildAudioAmps  

BuildAudioAmps  

BuildAudioAmps  

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ABOUT

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

BuildAudioAmps is a hands-on journey into DIY audio, driven by passion, precision, and the pursuit of sonic excellence. Since 2014, more than 100 amplifier and audio projects have been developed, tested, and shared here—each one bridging engineering rigor with real-world listening.

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BuildAudioAmps 

BuildAudioAmps 

BuildAudioAmps 

Audio DIY Projects 

Audio DIY Projects 

Audio DIY Projects 

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