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  • 2 power rails. (1 positive and 1 negative @ 3 Amp each)
  • 20000uF (10000uF per +/-rail) Super smoothing cap bank.
  • LM350 regulators
  • +/-V1 3V to 30V depending on Transformator
  • PE and GND connections
  • PCB measurements 90mm x 80mm
  • Connectors for cables up to 2,5mm²


The Single VPR can be configured using a 2x15/18Vac with 100VA to provide +16Vdc/-16Vdc. This configuration allows for powering a full Rack with up to 11 Effects in a 500/51X Rack.  We highly recommend a TRIAD VPT30-3330. With its versatile compatibility, the SINGLE VPR offers flexible options for powering various combinations of equipment within the 500 series. We combine two SINGLE VPR boards with the 48V PSU two power up two 500 Racks.


Build Docs and schematics

All our Build Guides


PriceFrom €14.99
Excluding Sales Tax
    • Shipping will be calculated depending on your location
    • Standard Shipping with DHL
    • UPS Express Saver as Option in Checkout
    • Free Standard Shipping in Europe on orders over 100€

    Return of untouched Original Products is possible during a time of 14 days after receiving your article, check our Return Policy

  • Introducing our single VPR, the perfect addition to your DIY audio electronics projects. This versatile power supply is designed to deliver stable and reliable voltage to your circuit, ensuring optimal performance and sound quality. With its compact size and easy-to-use design, it's the ideal choice for audio enthusiasts and DIYers alike. Whether you're building a new amp, preamp, or DAC, our single VPR is the perfect choice for your next project. So why wait? Order now and experience the power of high-quality audio electronics

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