The P.W.B. Video Library – The May Belt Lectures

System hierarchy? Synergy? …Who said that!


mrsb7Having started her adventures in audio in the late 50’s with her husband, you can be certain that May Belt of P.W.B. Electronics, has a wealth of knowledge about the audio industry. During the discoveries, the controversies, the revolutions, the backlash…. when it was all happening, she was there. She was living it. From the golden age of audio to far beyond. As her recent articles in online audio magazines show, she is still involved in the audio community today. Over the years, she has generously shared some of this knowledge in a series of audio lectures to groups of interested parties, at a U.K. institution of learning. The lectures describe her and her husband’s background in the hi-fi audio industry, and some of the paths that took Peter Belt to his later more revolutionary discoveries in the realm of reproduced sound.


May Belt, 1998

“The P.W.B. Story”


This was the first talk given, before an audience at a learning institution in the U.K. It describes most of Peter Belt’s background in the hi-fi industry, and also some of his subsequent discoveries in audio.

In this lecture, May discusses fundamental concepts that help to explain the principles and ideas behind the new approach to the problems restricting audio fidelity, that P.W.B. Electronics embarked upon in the early 80’s. On the scientific side of things, the talk also includes forays into the human experience, science and evolution of both human and animal species, human survival mechanisms and the working memory. On the audio side, it covers the significance of colour in relation to sound, a look at traditional approaches to the audio problem, and some of May’s earlier recollections of the audio industry. The talk runs the gamut from P.W.B’s more conventional product designs, to details of the medical trials conducted on hearing aid wearers, that found improvements of their devices after treatment by P.W.B. engineering. The lecture leads to later developments by P.W.B. Electronics.  e.g. explaining how and why P.W.B.’s popular silver rainbow (prismatic) foil was devised.

n.b. The talk cuts off a bit prematurely at the end, where the video tape ran out.  Also, this video has been split into two parts (to make things easier, web-wise).

Time (total): 3h06m
Size: 131mb x 2

Playing a video: Moving your mouse over the video clip thumbnail brings up the control bar. The blue vertical bars to the right of the seek bar allow you to adjust the volume. The symbol to the right of these vertical bars allow you to open the video up to full screen.


 The P.W.B. Story: Part 1/2



The P.W.B. Story: Part 2/2




May Belt, 2004

“The Cable Controversy”


This was intended to be an addition to the 1998 lecture. In this talk, May covers P.W.B’s hypothesis on audio cables, and their unique understanding into the principles behind how and why various cable characteristics change the sound we perceive. The talk covers such diverse aspects of the issue ranging from chemical reactions, to the problems using conventional beliefs to understand cable interactions that (following P.W.B.’s research into this), prove to be more complex than we think.

Time: 46m01s
Size: 96.5mb

 The Cable Controversy



May Belt, 2004

“The Percentage of Importance”

(Part 1/2)


In this series of lectures, May expands on her talk of 1998, with some of her themes based on feedback from the attendees of that lecture. “The Percentage of Importance” refers to the percentage of importance that engineers, designers, and manufacturers put on things. In this one, May explains where conventional engineering, and engineers that follow textbook thinking without any diversion, go wrong. Covering everything from turntables to loudspeakers to CD players, it is a must-listen lecture for audio engineers and enthusiasts alike.

 Time: 58m49s
Size: 102mb

 The Percentage of Importance: Part 1/2




May Belt, 2004

“The Percentage of Importance”

(Part 2/2)


In this second part of the “Percentage of Importance” series, May looks at conventional theories that manufacturers apply to explain various experimental phenomenon. She talks about how PWB’s approach may differ, and offer new and vital ways of understanding audio phenomenon that people struggle to understand. Slicing her own path through the thick brush of controversies found in the world of high fidelity audio, May attempts to shed some clarity and light on various topics. Including; green CD markers, reticent reviewers, KEF loudspeakers, Linn turntables, crossover networks, and PWB’s theory on how humans (really) react to sonic stimuli, borrowing from the concept of “the working memory” and research from Dr. Rupert Sheldrake.

Time: 55m:12s
Size: 96.5mb

 The Percentage of Importance: Part 2/2

(no longer available at this time, sorry!)



· the advanced audiophile

The Odd-Even Rule

Now here’s what may sound like an unusual theory… of which I have no doubt, no conventional thinker will believe. Even if they can claim tens of years of experience in audio. If you fit that bill and just react with amusement… then great. Call me the new “Cartoons on(full article)

The P.W.B. Morphic Link Bookmark

This review of P.W.B.’s “Morphic Link Bookmark” can be considered “Part 2” of my review on the “Morphic Link Paper Clips”, from P.W.B. Electronics. Particularly as this new device followed that one in series, and both follow the same concept: “linking or breaking patterns of morphic resonance”, as the instruction(full article)

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