Our commitment to you

We are committed to provide you with the best possible product and service. We can provide small or large quantities of Superpower regulators, given adequate lead time for procurement, assembly and testing. Contact info is here.

We're serious about

In honor of Sam Wilensky and Jim Williams.

Belleson History

The founder, chief engineer and mishap

Our founder, Brian Lowe, is a serial entrepreneur who has created multiple commercial products for other companies and his own.

He was naturally one of the kids who took stuff apart and shoved hair pins into electrical sockets. If you're reading this you were probably one of those kids too. His audio circuit design experience dates to 1971, when he designed his first reverb unit with a ceramic phono cartridge, 4 ball point pen springs, a model car hub cap, a small transistor amplifier kit and a speaker.

He also got inspiration from his high school friend Robert Frazier, who repaired a 12 inch woofer by removing its molten voice coil with a razor blade, reformed a new coil onto a piece of paper around a broom handle and reattached it with little strips of paper soaked in glue. The speaker was never "as good as new" but it played very well in the back of a 1965 Corvair.

The other half of that story, "how did the voice coil get melted?", is another learning experience. If you have an electric bass guitar and no guitar amp, you plug the guitar into your Bogen stereo receiver. If you want it to sound like it's played through a fuzz box, you turn the volume all the way clockwise. What you may not yet know is that the amplifier's output transistors are now clipping, essentially delivering very high DC current at its power supply voltage. So if you twang the bass strings loud enough, you put enough current through the speaker coil to melt the copper.

Turns out that this high power also destroys the output transistors in the receiver, so once the speaker is fixed, it's time to fix the receiver too. With no diagnostic equipment, the way to find the bad parts was to open the case and, with headphones, start listening at the output transistors, slowly move the headphone connector back from there along the signal chain until the signal sounds ok. Then replace everything between there and the output. That actually worked and the amp was repaired.

So the founder's early history with audio electronics was a series of mishaps that taught lessons. In the 1980s, he was author of a somewhat controversial article in issue 1 of Glass Audio called A Self-Bias Servo for Push Pull Amps.

He's also designed circuits as varied as a cascode tube preamp (which involved another mishap of cross-connecting the B+ and the filaments and resulted in vaporized filaments and resistors in flames), a high speed (for the time) CMOS digital character generator IC, monolithic op amps and voltage regulators, a chip-and-wire 18 bit D/A converter and 16 bit A/D converter, a diamond tester. He also spent a portion of the 1980s designing test equipment for op amps, data converters, micro-machined sensors and other analog and mixed signal devices.

In the 1990s he started and sold a commercial software company, started a company making caller ID systems and software components. Later that decade he wrote a book The Fundamentals of Mixed Signal Testing which covers analog and DSP techniques for measuring and testing analog and mixed signal devices, and its accompanying training software.

The Company

Belleson was first incorporated in 2000 in the Chicago IL area. With a long-time ambition to create audio electronics, the name Belleson is a concatenation of two French words for "beautiful sound."

Oddly, our first product was a software application for editing web pages. A cool product, its market was dominated by large companies such as Microsoft and Adobe. With dynamic web content becoming the next wave, it didn't get any traction.

Fast forward to 2009, when Brian returned to his true love, audio electronics, and began version 3 of a phono preamp design that had roots back to a 1983 tube-based phono amp. During the search for a better power supply, he studied existing super regulator designs, including a Walt Jung design, its Andrew Weekes variation, one by John Roberts in his "Preeminent Preamp" article in Audio Amateur 3/85, and others. He built a Weekes equivalent and used a JFET as a level translator instead of a zener diode. This is the basis for his U.S. patent 8,294,440.

In 2010 we introduced our first Superpower™ voltage regulators—SP17, SP78, SP79. Christina built the first 128 units using a hand held hypodermic to apply SMD solder paste, and the rest is history!

Brian is still chief inventor and customer support engineer, while Christina handles marketing, manufacturing, burn-in, packaging and shipping. They have shipped thousands of high performance regulators since January 2010, including standard products and custom designs for equipment manufacturers.

The Belleson Superpower SP was introduced in late 2009 and began commercial sales in 2010. Since then, the versatile design has been morphed into multiple variations from a 1.2V, 2A regulator to a 400V 500mA version. Also, continuous research and development has allowed performance enhancements and product improvements to be consistently introduced:

The hard part now is how to improve on something as good as SPX?


This site is being gradually updated. If you have any problems please email super@belleson.com

The Industry Standard SPX

Order now from our store.

  • 5V to 30V output
  • World's lowest output impedance
  • Superb ripple rejection (135dBV)
  • Instant step response
  • Extreme low noise
  • TO-220 footprint
  • No thermal pad needed!

High Voltage!

Tube lovers—SPHV is BACK!

  • Variable output 5V to 450V
  • Up to 500mA output current
  • Super low 0.5V drop-out at 100mA
  • Small TO-220 footprint!
  • Low output impedance
  • Fast response
  • Low noise

Belleson accepts credit card payments and PayPal

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