All Belleson regulators use the same patented design to deliver super low noise, super high ripple rejection and blazing fast transient response. Which regulator you choose depends on the output voltage you need and how much power the regulator must dissipate. The following product descriptions can help you decide.

SPX Highest Performance Superpower

SPX image
Our newest and most amazing regulator!

SPHP 1000 Watt Superpower

A high current and high voltage product, with 10A output at up to 100V, uses an external 200W power transistor to deliver superbly regulated output voltage with enough voltage and current for power amps and music servers.

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SPHP controller PCB and high power output transistor

SPM Low Current 225mA

Small and perfect for ADCs, DACs and ultra low jitter clocks

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SPM, our smallest Superpower

SPLV Low Voltage Superpower

The perfect regulator for low voltage technologies such as the ESS 9018 Sabre32 reference DAC.


The king is dead,
long live the King!

SPX has replaced SPZ

  • Variable output 5V to 30V
  • World's lowest output impedance
  • Better ripple rejection (135dBV@60Hz!)
  • Faster step response
  • Same low noise
  • Same TO-220 size physical form factor
  • No thermal pad needed
Order now from our store.

Measurement Videos

We have a new page with videos showing how we characterize our (and others') voltage regulators in the lab.

SPHP—1000 Watts for your music server!

SPHP, a 10A Superpower with adjustable output voltage from 5V to 100V

  • Same low noise
  • Same blazing step response
  • Same great ripple rejection.
Just lots more current and much higher output voltage. For sale on our order page See more information in the data sheet here.

Build a power supply

A PCB and parts list for building a compact dual positive or positive+negative power supply are on this new page.

Transformer Calculator!

Use the Belleson Transformer Calculator to calculate the minimum Vrms voltage of a transformer for your Superpower based supplies.

It's Official

We're proud to announce the U.S. Patent and Trademark Office has granted patent 8,294,440 to the Superpower design.

Use the Superpower regulator in...

  • Headphone amps
  • DACs
  • Buffers
  • Clocks and reclockers
  • Preamps
  • Microphone preamps
  • Phono stages
  • Phono motors
  • Tube preamps and input stages
  • Line powered guitar effects boxes
  • Anywhere an extremely clean, quiet, dynamic power source is needed