CMOYBB DIY kit by JDS Labs

Acknowledgement JDS Labs provided me with this kit to build and review. Big thanks to John for helping to support the DIY ecosystem and make the review possible! Introduction The CMoy amplifier, first published in 2001 by its namesake Chu Moy, is a mainstay of DIY headphone amplification. This humble amp has sailed a thousand... Continue Reading →

August 31, 2017 2

Pocket Class A DIY Headphone Amp by XRK971

I crossed paths with XRK971 a few months ago on the diyaudio.com forums as we worked concurrently on Class A single-ended headphone designs. Although we did not collaborate and our parts choices differed, our overall topologies share a strong resemblance. After chatting a bit, we exchanged some parts so that each could hear what the... Continue Reading →