Contact Us

Mailing address:

Belleson, LLC
317 Silver Creek Rd.
Greer SC 29650
USA

Contact us via email email

To speak with us, call 864 444 9981 (EST USA).

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