James Lebihan | 7 years ago

Can you hear a difference?

In this video we connect different pedal boards to both isolated and daisy chained power supplies, and then analyze the differences. After completing the tests, we do a frequency analysis of the noise, and then an explanation of the processes at work.

The audio recordings and frequency analysis results can be downloaded here: https://missionengineering.com/analyzing-digital-noise-in-pedal-boards/

Watch Part II of this video here: https://youtu.be/_5sPLcFRCow
Watch the complete guide to pedal power supplies here: https://youtu.be/mrVt6ze8AjI

If you are interested in more detail about pedal voltage and current, here's a document:
https://missionengineering.com/power-supply-hacks/?mc_cid=ff110beacf&mc_eid=39c524657c