Bi-radial vs constant directivity speakers

We have engaged in projects with them ranging from simple equipment rentals for special events to large-scale design and installations on two of our campuses. Their strengths are many, but near the top of the list is an ability to think creatively to address not only current needs, but also the long-term functionality of the system in your venue for years to come. Our experiences with them in regard to customer service have all been favorable from telephone reception to installers to follow up. They have our confidence and trust. The installation was very clean. Great attention was paid to the smallest detail.

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Content:

• Constantant directivity, manta ray, bi-radial, wave guide, etc horn speakers
• Studio 190
• AER AS281/4
• Jbl 4425 // Bi-radial Studio Monitor Speakers
• Book Review: Exploring High-Quality Horn Loudspeaker Systems
• Compression driver horn design
• Speaker picture thread
• 2 Inch Small Format Flat-Front Bi-Radial Horn, 60 x 40 Degree Coverage
• Horns & Waveguides
• HARMAN’s Cinematic History

WATCH RELATED VIDEO: What is Loudspeaker Directivity?

Constantant directivity, manta ray, bi-radial, wave guide, etc horn speakers

The Audio Voice Newsletter. Show more Show less. This article was originally published in audioXpress, February As the title of the book under review clearly states, this is a book about horn history, theory, and design. Development work and papers on horns and compression drivers are well covered in the trade magazines and technical journals.

Nevertheless, this topic for the focus of a reference book is a good idea as it has not been addressed lately and has been superbly executed. Co-author Thomas Dunker referred to this book as the missing piece of his library. For speaker engineers, I think we can concur on behalf of all our colleagues. But if I need to be more precise, this is the finest reference work on horn loudspeakers possibly in the history of mankind.

I am not worthy to review and judge this work, but only serve to carry the message of its existence to our readers. Background Information The authors are native Norwegians but thankfully for most of us they decided to use their second language, English.

While they apologize for any shortcomings in their language skills, their work provides clean, concise, and well-written content resulting in a polished and professional resource book. As a scholarly reference, the table of contents and bibliographies after each chapter are finished off with a full index.

Kolbrek became interested in horn speakers in the late s and was affiliated with Celestion in the UK before finally earning his doctorate at the NTNU in Sweden.

But even before this article, the authors collaborated on horn speaker research in At that time, both experts were looking for answers to some of the same questions and both had studied the theory of horn speakers for some time and collected a great deal of literature. Thomas Dunker, the other author, is also a passionate audio experimenter and DIYer, and while horns have remained his avocation rather than vocation, he still has immersed himself in the subject for more than 25 years.

The historical aspects found within the book were his main contribution, but Kolbrek also contributed to the history section. The foreword is by Mark Dodd, which most us know as a longtime Celestion employee and head of research. The book reflects positively on the entire Celestion team and the brand itself. The Content But let me push forward into the book itself.

High Quality Horn Loudspeaker Systems is well beyond comprehensive, it is a truly exhaustive exploration of the field. With apologies to the religiously sensitive, and I say this with all respect — the title would be more accurate if it was The Bible of High Quality Horn Loudspeaker Systems.

This tome is more than 1, pages, the first section is a history of electroacoustic transducers from the telephone receiver to movie sound and broadcast monitors onward.

But the real story is that Jensen was not really a local. He was consulting in the area and was still very much Scandinavian Danish. With the history out of the way, the book continues onto theory and design with a thorough exploration of horn loudspeakers up through today.

Out of curiosity, I picked a couple of obscure topics to see if all the trivia was sorted and covered. Within every nook and cranny I looked, I found the authors had long ago signed the guestbook. In a few instances where I thought something might have been left out, I stumbled onto well-researched coverage later on in the book.

Of course, as soon as anything is published, on-going developments will continue and I am sure their second edition will be well-received in a couple of years. Since the pressure was on to publish a review of this book right away, I have yet to completely read the entire 1, pages. I did dig deeper on a few sensitive topics such as Constant Directivity. From time to time everyone and every industry , goes off the rails and chases stray balls.

So I was quite curious how the book would treat what for me was the dark ages of horn design — the attempt at constant directivity CD at all cost for a number of years — with only a few speaker engineers not pursuing that avenue of development. Those early efforts resulted in the terrible sounding horns of the s e. The application of these horns in the cinema resulted in unpleasant and fatiguing dialog. Yet, the mantra for constant directivity was mainly driven by the marketing departments.

However, not all companies chased the constant directivity mandate, including the Meyer Sound products, some of the Yorkville Pulse series horns, some Beyma designs — these examples found ways to avoid the failings of these early CD designs.

Yet, the same design engineers who developed most of the CD horns later went on to give us some very fine horns with extended bandwidth with fairly constant directivity. So many topics are addressed that are not commonly discussed, such as the serious compromises in sound quality that seemingly we all have come to accept.

Throat distortion due to higher compression ratios are addressed within a number of sections. Read more

Studio 190

Cessaro Horn Acoustics create bespoke horn speaker masterpieces. With exclusive technique, state-of-the-art technology and exceptional workmanship, Cessaro evolve the horn speaker concept to an incredible new level. Aside from their significant design and engineering achievements, these creations simply sound extraordinary. Cessaro Horn Acoustics was established in by Ralph Krebs with one goal in mind: To manufacture horn loudspeaker systems which can faithfully reproduce live music in your home. Many of the components used in these loudspeakers originate from aerospace and military applications.

AER AS281/4

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Jbl 4425 // Bi-radial Studio Monitor Speakers

Your browser's Javascript functionality is turned off. Please turn it on so that you can experience the full capabilities of this site. Learn More. The ribbed construction improves strength while reducing distortion, filling a room with deep, resonant bass. Ideally, sounds should blend together within your ears, not interact with one another before they reach you.

Book Review: Exploring High-Quality Horn Loudspeaker Systems

LOG IN. In the studio and post production world, powered monitors are displacing traditional speakers and amps at record pace. Edit Delete. I will always like the option using different amps, ect As Chad mentions it is cheaper - it is easier to build a higher performance amp with limited bandwidth powering one driver than the same quality performance with very large bandwidth driving several drivers as well as a lossy passive crossover.

Compression driver horn design

The horn provides uniform on and off axis frequency response from Hz to beyond 16 kHz in the horizontal plane and 2 kHz to 16 kHz in the vertical plane with constant directivity above 2 kHz. The horn. If you don't see it, it doesn't mean we don't have it. If you are interested in a certain product, but don't see it on our website, please call us or e-mail us! Uniform horizontal on and off axis frequency response Precise horizontal and vertical pattern control Full horn loading to Hz Flat front and compact size Lightweight construction 49 mm 2 in throat entry. Back to DJ Speaker Components. Back to DJ Speakers.

Speaker picture thread

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2 Inch Small Format Flat-Front Bi-Radial Horn, 60 x 40 Degree Coverage

RELATED VIDEO: Narrow vs Wide Dispersion Speakers: Which is Better?

A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element s. A common form right consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet , attached to a horn, a flaring duct to conduct the sound waves to the open air. Another type is a woofer driver mounted in a loudspeaker enclosure which is divided by internal partitions to form a zigzag flaring duct which functions as a horn; this type is called a folded horn speaker. The horn serves to improve the coupling efficiency between the speaker driver and the air. The horn can be thought of as an "acoustic transformer " that provides impedance matching between the relatively dense diaphragm material and the less-dense air. The result is greater acoustic output power from a given driver.

Horns & Waveguides

I'll make you a deal on a pair if you like. What problems did you have with it? JBL notes in their liturature on the that the used a computer matched "phasing plug" and a Hz crossover although the specks of the horn would indicate that you could cross over lower. To quote the JBL literature: "In addition to the normal function of frequency division, the network in the provides power response compensation for the high frequency driver. I could not find the specs on the but I did find the specs on the similar biradial horn.

HARMAN’s Cinematic History

Contact Don. Big Bear Lake, CA. Last year I did 28 competitive events including five half marathons, a triathlon, and a 38 floor stair climb. Pretty good for a 69 year old!