Sigma 11 Power Supply for Pre-Amp

The Boozhound Labs pre-amp I built needed a power supply.  The basic option was just to use a basic “wall wart” DC power supply, but knew these were generally low quality, unregulated and quite noisy.  Since pre-amp quality is pretty dependent upon power supply quality, I decided I wanted to use something better.

I found a project by AMB Labs for a Sigma 11 power supply.   It’s a high-quality regulated single-rail power supply.  I’d configure it for 24v.

Again, I used a case from Modushop and a rear panel from Schaeffer.

Here are the images of the completed build.

PSU Side

PSU Top

PSU Top 3

PSU Rear

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