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INTRODUCTION - PLEASE READ FIRST TO UNDERSTAND THIS FORUM!

"This Harbeth User Group (HUG) is the Manufacturer's own managed forum dedicated to natural sound from microphone to ear, achievable by recognising and controlling the numerous confounding variables that exist along the audio chain. The Harbeth designer's objective is to make loudspeakers that contribute little of themselves to the music passing through them.

Identifying system components for their sonic neutrality should logically proceed from the interpretation and analysis of their technical, objective performance. Deviations from a flat frequency response at any point along the signal chain from microphone to ear is likely to give an audible sonic personality to the system at your ear; this includes the significant contribution of the listening room itself. To accurately reproduce the recorded sound as Harbeth speakers are designed to do, you would be best advised to select system components (sources, electronics, cables and so on) that do not color the sound before it reaches the speakers.

For example, the design of and interaction between the hifi amplifier and its speaker load can and will alter the sound balance of what you hear. This may or may not be what you wish to achieve, but any deviation from a flat response is a step away from a truly neutral system. HUG has extensively discussed amplifiers and the methods for seeking the most objectively neutral among a plethora of product choices.

HUG specialises in making complex technical matters simple to understand, getting at the repeatable facts in a post-truth environment where objectivity is increasingly ridiculed. With our heritage of natural sound and pragmatic design, HUG is not the best place to discuss non-Harbeth audio components selected, knowingly or not, to introduce a significantly personalised system sound. For that you should do your own research and above all, make the effort to visit an Authorised Dealer and listen to your music at your loudness on your loudspeakers through the various offerings there. There is really no on-line substitute for time invested in a dealer's showroom because 'tuning' your system to taste is such a highly personal matter. Our overall objective here is to empower readers to make the factually best procurement decisions in the interests of lifelike music at home.

Please consider carefully how much you should rely upon and be influenced by the subjective opinions of strangers. Their hearing acuity and taste will be different to yours, as will be their motives and budget, their listening distance, loudness and room treatment, not necessarily leading to appropriate equipment selection and listening satisfaction for you. Always keep in mind that without basic test equipment, subjective opinions will reign unchallenged. With test equipment, universal facts and truths are exposed.

If some of the science behind faithfully reproducing the sound intended by the composer, score, conductor and musicians over Harbeth speakers is your thing, this forum has been helping with that since 2006. If you just want to share your opinions and photos with others then the unrelated Harbeth Speakers Facebook page http://bit.ly/2FEgoAy may be for you. Either way, welcome to the world of Harbeth!"


Feb. 2018
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Precision

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  • Precision

    I heard a very interesting interview with the author Simon Winchester last night on the wireless discussing his new book “Exactly: How Precision Engineers Created the Modern World”. Fascinating stuff and how those engineers’ inventions still have echoes in the day to day modern world such as Whitworth’s screw standard.

    The difference between precision and accuracy was also highlighted as we are prone to use those words interchangeably.

    Winchester spoke of how Royce and Ford were direct contemporaries and from comparable backgrounds, both fans of the French four-wheeler petrol engine bicycle and simultaneously developed both the T-Model and Silver Ghost on different sides of the Atlantic with obviously completely diametrically opposed objectives brought about in vastly different ways; and yet precision was their common aim.

    One of the last amazing facts mentioned in the interview; there is an estimated fifteen quintillion transistors in use around the world, a number greater than all of the leaves on all of the trees on the planet. And that their tolerance from one another on various commercial chips is now nothing more than an atom’s breadth and now or in the near future (that wasn’t made clear), a transistor with one electron is possible and the tolerances so fine that they enter the behaviour world of quantum mechanics, something to boggle the mind since the first transistor was developed in the 1940’s.

    “Precision is the key to everything. It is an integral, unchallenged and essential component of our modern social, mercantile, scientific, mechanical and intellectual landscapes. The items we value in our daily lives – a camera, phone, computer, bicycle, car, a dishwasher perhaps – all sport components that fit together with precision and operate with near perfection. We also assume that the more precise a device the better it is. And yet whilst we live lives peppered and larded with precision, we are not, when we come to think about it, entirely sure what precision is, or what it means. How and when did it begin to build the modern world?

    Simon Winchester seeks to answer these questions through stories of precision’s pioneers. Exactly takes us back to the origins of the Industrial Age, to Britain where he introduces the scientific minds that helped usher in modern production: John ‘Iron-Mad’ Wilkinson, Henry Maudslay, Joseph Bramah, Jesse Ramsden, and Joseph Whitworth. Thomas Jefferson exported their discoveries to the United States as manufacturing developed in the early twentieth century, with Britain’s Henry Royce developing the Rolls Royce and Henry Ford mass producing cars, Hattori’s Seiko and Leica lenses, to today’s cutting-edge developments from Europe, Asia and North America.

    As he introduces the minds and methods that have changed the modern world, Winchester explores fundamental questions. Why is precision important? What are the different tools we use to measure it? Who has invented and perfected it? Has the pursuit of the ultra-precise in so many facets of human life blinded us to other things of equal value, such as an appreciation for the age-old traditions of craftsmanship, art, and high culture? Are we missing something that reflects the world as it is, rather than the world as we think we would wish it to be? And can the precise and the natural co-exist in society?”

  • #2
    Fascinating and with much in common with "Zen and the art of motorcycle maintenance" probing the question 'what exactly is "quality?"'.

    One thing is clear. Maintaining precision is hard work and is impossible if top management are not fully committed, and that ripples right down to the most humble member of the team. Attracting and keeping good people is crucial. Several of our team here at Harbeth HQ have been here for 15 years plus.
    Alan A. Shaw
    Designer, owner
    Harbeth Audio UK

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