Reportedly there are more products coming in the future. His company, Transcendent Sound, had just begun manufacturing, and he was displaying his only product offering at the time — his well-known output-transformerless OTL amplifiers. The price is already very reasonable. Tubes, let alone employed in an OTL design, are hardly the stuff of new graduates. Ask him a question he feels qualified to answer, and you will get an answer. Get information about new releases for these contributors straight to your inbox.
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His company, Transcendent Sound, had just begun manufacturing, and he was displaying his only product offering at the time -- his well-known output-transformerless OTL amplifiers. The designs were sort of surprising given that Rozenblit is a youngish-looking guy who appears to have graduated with a degree in electrical engineering not too long ago.
Tubes, let alone employed in an OTL design, are hardly the stuff of new graduates. Still, it is an area that Rozenblit has studied and in which he can be considered an expert. Rozenblit continues to break away from the norm and now sells all of his products factory-direct. Reportedly there are more products coming in the future. In the meantime, he produced this book. Suffice it to say, he is a busy guy. He has a knack for telling it like it is. His communication is, in a word, straightforward.
Ask him a question he feels qualified to answer, and you will get an answer. Whether you like the answer of not, Rozenblit will not mince words and he will get right to the point. His personality is reflected in this book.
I cracked open the envelope and slid my hands over the shiny cover, impressed by the glossy finish. Audio Reality is comprised of two parts. Through some 60 pages of text and graphics, Rozenblit explains basic concepts for understanding audio engineering, including descriptions of electricity, conductors, resistance, capacitors, inductors, impedance, skin effect, etc.
He also explains things like single-ended and balanced connections, negative feedback, dynamic range, power cords, grounding, biwiring and quite a bit more. The topics I mention here are only a fraction of what gets discussed. The information is intended for all audiophiles, to give them a requisite understanding of the science that is part of audio.
He uses simple language and effective examples. There was not a single part that confused me, nor will any of it likely confuse others.
Its target audience is obviously those who have little or no knowledge of electronics. If there is something to criticize in this it is the fact that Rozenblit jams so much of this information in that it can be a tad difficult to absorb fully. Ideas sometimes stray, and much more information gets presented than the section headings would indicate. You can almost hear his enthusiasm when explaining, resulting in the need to re-read paragraphs and just soak it all in.
But like I already said, there may be a lot, but it is presented for easy understanding. Besides, I find it all the more important to have the information than not. Excess is welcome in this case. On the other hand, there were some subjects omitted that I would have liked to see included. For example, he refers to "break-in" when talking about his amplifiers in part two of the book, but I would have like to have seen him address the concept specifically in the first part.
Perhaps an Audio Reality 2 will surface in the future. Some comments will win the hearts of budget-based audiophiles -- he emphatically states that "Cost does not directly relate to performance. For example, he discusses why he feels negative feedback in amplifier design can be a good thing, but the marketing of some amplifiers would tell you otherwise!
The truth is, as he explains, there are no easy right and wrong answers, and one way is not always the best. Some comments will ruffle your feathers, particularly in regard to cables. Frankly, though, this is no real surprise because cables have been a source of constant debate.
The part of the discussion I enjoyed was that which covered single-ended versus balanced lines. Rozenblit emphatically states on the subject of balanced cables: "How does this apply to a residential-based, consumer audio system?
He also discusses the intricacies of RCA connectors ".. But he does question the need to go that far. Some may think that Rozenblit is anti-high-end, but that is hardly the case.
After all, the guy designs tube-based equipment, and as we approach the millennium, I would think that some current-day engineering grads could take issue with that! What I gleaned from the book is that its writer is not anti-high-end and not a designer who feels that everything sounds the same.
Rather, he attempts to give explanations as to why differences may occur and gives practical explanations on where money is well-spent in an audio system. The real point of the book is to point out that you can build a truly outstanding system for a very moderate investment through a thorough understanding of the components involved.
Do you want cost-no-object build quality and construction, or do you want something that will get you most of the way there? So in the end is the content really controversial? But that does not mean it is not inflammatory -- you can see the same discussion incite arguments elsewhere on a regular basis.
This is all information that many talk about daily, particularly on the Internet newsgroups and bulletin boards where worldwide communication is very quick and efficient. However, it is also the kind of information that is vital in this industry, that keeps it alive, interesting and progressing. Part two of the book is "Projects," and it is as valuable a read as the first part.
It is here that Rozenblit explains all of his current designs, including his OTL amps, Grounded Grid Preamp, Super Compact watt amplifier and even throws in a couple designs that he is not building commercially -- the Single-Ended with Slam amplifier and Grounded Grid Cascode Phono preamp. He leaves nothing to hide, feeling that anyone who wants to see his circuits can just look inside his products anyway.
A full parts list is disclosed along with the circuit design; however, this information is intended for the experienced builder because Audio Reality is not a how-to book. While the book gives some fairly thorough background and theory on these designs, it is not a paint-by-numbers instruction manual on building them. The circuits are fully drawn and documented, but will only be understood by someone already well-versed in electronics. Basic instructions on chassis design, wiring and component mounting are given, but these are not intended as directions for a kit because the information is nowhere near explicit enough.
I would personally like to see Rozenblit produce a straightforward how-to book with exact details on how to build each product from start to finish. Or perhaps he can supply his own products in kit form! Part two is also, obviously, a chance for him to promote his company and his products he says so in the book. The price is already very reasonable. Am I killing my summer? The truth is, I view courses and books as knowledge, and I enjoy learning.
Ignorance may be bliss, but enlightenment is more rewarding. Audio Reality presents educational information that can undoubtedly be found in other text books on electronics. The details on his designs are worth reading about, particularly if you plan to buy one of his products.
I certainly learned quite a bit in the short time it took me to read through Audio Reality. Doug Schneider.
AUDIO REALITY BRUCE ROZENBLIT PDF
Pitched at a level that is comprehensible to the intelligent novice, Audio Reality seeks to furnish the reader with a solid theoretical understanding of the fundamentals of audio technology. Writing in a refreshingly "curmudgeonly cheapskate" persona, the author attempts to explain the scientific facts that underlie and sometimes contradict the hearsay and mythologies of high-end audio. Although produced by a commercial manufacturer, the advantage of building your own is a subtext that runs throughout the book and Bruce wants to help equip the reader to take on that rewarding challenge. He tops off his presentation with complete schematics for some of his unconventional designs, including his complete product line! By Joe Roberts of Sound Practices magazine. The overwhelming majority have very little knowledge, if any, about the most basic principles and operating characteristics of audio equipment.
Audio Reality by B. This book we are going to write about is distributed in Italy by Audion and has a strict connection with tubes. The author is perhaps not very famous, but one of his products has been awarded a Class A status by Stereophile, definitely an exceptional situation, which is even more surprising taking into account the price: around USD for a monoblocks pair but there exists a stereo version which costs about one half. The book gives a lot of answers. The first part of the book is targeted to the average audiophile, the one that is scared by technical information, but would like to understand something more.
His company, Transcendent Sound, had just begun manufacturing, and he was displaying his only product offering at the time -- his well-known output-transformerless OTL amplifiers. The designs were sort of surprising given that Rozenblit is a youngish-looking guy who appears to have graduated with a degree in electrical engineering not too long ago. Tubes, let alone employed in an OTL design, are hardly the stuff of new graduates. Still, it is an area that Rozenblit has studied and in which he can be considered an expert. Rozenblit continues to break away from the norm and now sells all of his products factory-direct. Reportedly there are more products coming in the future.