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Thanks to everyone who visited our booth and demo room during InfoComm '18 in Las Vegas.  We enjoyed getting to reconnect with many folks and make lots of new friends as well. Several new Danley products created a buzz in Vegas.  In this newsletter, we'll highlight one of them, the Mini180.  You can also read Doug Jones' article about another historical figure in the field of electronics.  That and more in the July Danley Newsletter.
Danley Certified Designer Network
Our listing of Certified Designers is now up and running! Just click the icon on our homepage (  and you’ll be routed to the current listing and other program details. If you are not listed and interested, please contact your local Danley Representative to see how you can be part of our network.
Program Details

Infocomm Show & New Products
Visitors to this year’s demo room got to see and hear several new exciting products and technologies. Among them were the Pico, Studio One, Studio Sub, Mini180, and a new adaptation of the SALT (Shaded Amplitude Lens Technology), which we see as a real game changer. We also showed a new cabinet material (EW) we will offer in the near future which provides extended protection and life in outdoor conditions. We appreciate all our visitors’ feedback and have already started implementing slight tweaks to our offerings to make them even better.

Please note, the Pico, Studio One and Studio Sub are being modified so specification sheets, pricing, and delivery will be announced in the coming months but not ready yet.

The Mini180 is available now. Please visit our website for details and contact your local representative for pricing. This little box provides 180-degree coverage from a small footprint and can be utilized indoors or outdoors to provide voice and music to a wide area. 2 units can be mounted back to back to provide 360 degrees.

As many of you already know, Danley’s shaded amplitude technology has been highly successful in applications where “even coverage” is required from the front to the back of the audience listening area. Turner Field (Atlanta Braves) and Lambeau Field (Greenbay Packers) are some proven examples of SALT technology providing the needed solution into our GH Genesis product.  Now, with the second generation of SALT, Stereo imaging is an added benefit throughout the 180 x 40 degree coverage pattern. In essence, every seat in the house can get the stereo experience, despite the left and right speakers being spread far apart from each other.  There is too much to tell in this review, so please look for an upcoming white paper to explain all the possibilities!

Lastly, Danley showed off samples of a new EW (Extreme Weather) material we will be offering for cabinet manufacturing in the near future. Some of the key features are:

  • 40-60% lighter than plywood
  • Highest Density Composite Panel available
  • Highly resistant to Mold, Mildew and Insect Infestation
  • Low Thermal expansion  (especially critical in areas with wide temperature swings)
  • Superior UV Protection

The best part…. This will be available for all wood products, not just a select series.


André Marie Ampère
Prof. Doug Jones

Last month we took a look at Alessandro Volta, the man who we honor by using his name as the unit of electromotive force.  This month we are going to meet another great man in the history of the harnessing of electricity, André Ampère.  Following the form we used last time, lets first review the ampere: the unit that bears his name.
The rigorous definition of the ampere is:
“The practical meter-kilogram-second unit of electric current that is equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied across a resistance of one ohm”[i]
To break this down in simpler terms and once again reverting to our admittedly incomplete and imprecise water analogy, if voltage is the potential due to a mass of water contained in a storage tank elevated high above the ground, thereby allowing gravity to act on the water and create potential energy, then current, measured in amperes, is analogous to the amount of water flowing through a pipe connected to the water tank.  In this sense current is the kinetic energy that happens when a path is created to allow the water to flow.  The amount of flow or current is determined by the “pressure” or voltage and the resistance, in ohms, which we will examine next month.
Ampère’s story begins in January 1775 when Volta was 30 years old.  1775 was a pivotal year for our country.  In March of that year, when Ampère was still an infant, Patrick Henry delivered his famous “Give me liberty or give me death” speech. In April, Paul Revere went for his ride around Boston.  George Washington was named Commander in Chief of the Continental Army. Elsewhere in the world, Africa was still pre-colonial, China and Britain were pretty much the dominant world forces, and in Salzburg, Austria, 19 yr. old Mozart was working on his violin concertos.   Louis XVI was King of France, which was on the verge of its own revolution.
Andre´, born January 22 1775, was the only son of Jean Jacques Ampère and his wife Jeanne Antoinette Sarcey de Sutieres.  Soon after his birth, his father, a merchant in the town of Lyons, retired and moved to a small town nearby. He spent much of his time tutoring young Andre´. From a very early age, it was obvious that there was something very different about Andre´.   He was essentially home schooled by his dad, as there were no real schools nearby.  As soon as Andre´ learned to read, he asked for books about algebra and mathematics.  When he exhausted the resources at his disposal, his father took him to a large library in Lyons.  Andre', who was barely 12 years old at the time, asked for the works of the great mathematicians Euler and Bernoulli.  The librarian was dumbfounded and said to Andre' and his father, “these books contain the differential calculus and are among the most difficult that the human mind has produced”.   “Nevertheless, I hope to be able to understand them,” replied Andre´.  A bigger hurdle was that the books were written in Latin.  But, he did not let that deter him. He found a tutor and in short time had mastered Latin well enough to not only read but comprehend these great works of mathematics.[ii] He not only read mathematics but virtually every book he could find, including a 20-volume encyclopedia, which he read in its entirety.  He apparently had a photographic memory as he was able to quote long passages from it some fifty years later.  [iii]  In his later teens, Andre wrote that there were three prominent events that greatly influenced him; his first communion, which had a profound effect on his religious life, the eulogy that Thomas gave on Descartes, which fostered his love of mathematics, and the taking of the Bastille, which “strengthened his belief in the nobility of man.”[iv]

That belief was about to be shaken to its very core.  Andres’ father, a moderate man, was appalled at the excesses of the revolution and returned to Lyons and became a judge.  Soon after, Lyons fell to the revolutionary army and Jean Jacques was one of the very first victims.   He was executed by guillotine on November 24, 1793 when Andre' was 18 years old.

To say that Andre' took it hard would be a dramatic understatement. His father was such an important figure in his life, the loss was devastating. He grieved hard for over a year and was reduced to an almost catatonic state.  Eventually, he did recover and met a young lady who he fell madly in love with and married in 1799.  As tempting as it is to follow the fascinating life of this young genius, we must skip ahead to Ampère 's work with electricity, because after all, that is how we know his name.
In the fall of 1820, he heard of a discovery made by a Danish physicist Hans Christian Ørsted.   Ørsted discovered that when you place a simple compass near a wire that is carrying an electrical current, the needle in the compass will move. [v]  Ampère was not an experimenter like Volta was. His gift was being able to quickly grasp the science behind the experiment.  A mere seven days after Ampère became aware of Ørsteds’ discovery, he published a paper that presented a complete and mathematical description of the phenomenon than Ørsted had observed.[vi]  Over the next two years, Ampère went on to define a way to predict which direction the compass needle will turn when a current is passed through a wire near it.   He also demonstrated that when current is passed through 2 parallel wires they are either attracted to each other or repelled.  His formulation of the interaction between two conductors passing current is known as Ampère ’s Law.  He was the first to show that you can make a magnet by passing a current through a coil of wire. Ampère coined the term electro-dynamics to describe this new area of scientific research.
Like Volta, Andre Ampère was a man of profound faith.  In his last paper Essai sur la Philosophie des Sciences (Essay on the Philosophy of the Sciences), published in 1843, he wrote;
“We can see only the works of the Creator, but through them, we rise to a knowledge of the Creator Himself.  Just as the real movements of the stars are hidden by their apparent movements, and yet it is by observation of the one that we determine the other:  so God is in some sort hidden by His works, and yet it is through them that we discern Him and catch a hint of the Divine attributes.”

“One of the most striking evidences of the existence of God is the wonderful harmony by which the universe is preserved and living beings are furnished in their organization with everything necessary to life, multiplication, and the enjoyment of all their powers: physical and intellectual."[vii]

Ampere died on June 10th 1836.  In 1881 at the International Exposition of Electricity, the ampere was established as a standard unit of electrical measurement, in recognition of his contribution to the creation of
modern electrical science.
[i] Merriam-Webster, n.d. Web. 18 June 2018.
[ii] J. Munro Pioneers of Electricity  London, 1890.  pages 161,162
[iii] ibid
[iv] ibid 163
[v] 1911 Encyclopedia Britannica Volume 1
[vi] J. Munro Pioneers of Electricity  London, 1890.  P 170
[vii] Essai sur la philosophie des sciences II, Paris 1843, 24 f.
July 1, 2018
DNA SC48, How is it different from the amplifiers?
By: Josh Millward
The DNA SC48 from Danley Sound Labs is a powerful four input by eight output digital signal processor that can be used to bring the sound quality and DSP performance of the DNA series products to other amplifier models. However, there are a couple of very important details that must be observed when using the DNA SC48. 
First, a unique feature of the DNA SC48 is that all of the inputs and outputs can be analog or digital. The inputs and outputs can be switched in pairs to be either analog or AES3 digital audio. These can be used in any combination, as long as they are used in pairs. For example, inputs 1&2 can be AES3 whilst inputs 3&4 are analog. Likewise, Outputs 1&2 can be AES3, 3&4 analog, 5&6 AES3, 7&8 Analog, if desired. It is also possible to use the Dante, AES3, analog, or any combination for inputs with AES3 or analog outputs. Truly, this makes the DNA SC48 an extremely flexible and configurable bridge between different audio transport methods, along with all the fantastic DSP functionality it brings to the table. 
When using the DNA SC48 to drive third party amplifiers, it is critically important to calibrate the output of the DNA SC48 to match the amplifiers being used. There is an application note available from Danley Sound Labs called “AmpNote 011 – Calibrating the Limiters on the DNA SC48 with an amplifier attached.pdf”. This document is available from Danley’s technical support team to assist an operator in correctly setting up the DNA SC48 to work with their amplifier of choice. Once properly configured, the limiting features of the DNA SC48 will be able to protect the loudspeakers as designed, even though a third-party amplifier is being used. 
Certainly, the DNA SC48 is an extremely flexible and powerful system processor for audio systems. It offers many configuration options and connectivity options. All around, it is a fantastic audio systems tool. 
The current version of System Engineer is 7.00.15. This version is available for download from our website:
The current version of firmware for the DNA 10K4 Pro and DNA 20K4 Pro amplifiers is 1.306.
The current version of firmware for the DNA SC48 is 1.394.
Loudspeaker Master Preset Stack version is 20170424
The firmware and loudspeaker presets are included in the System Engineer download zip file for System Engineer 7.00.15.
DNA product videos can be found on our website:
Danley Rental Gear: Got some? Need Some?

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