+++ Lautprechermanufaktur Heyder (LMH) Status Update: Kündigung der Verträge +++
Featured
Acoustic Loading Optimized Final Generation Horns – ALOV2
Most readers of my blog should already be familiar with the special optimization technique for my acoustic loading horns which I have called Acoustic Loading Optimized (ALO) horns. The main focus is to get very good acoustic loading horns together with excellent and even directivity control. Almost all horns that are based solely on acoustic loading optimized profile fail in this regard because they more or less strongly focus the sound toward high frequencies.
Over the past years, I have learned a lot about acoustic horns and have continuously developed and significantly improved my inventions in this field. The results are my final generation acoustic horns, which I will be presenting in detail in the near future. The first step is the presentation of the improvement of the ALO procedure to ALOV2.
The Mysterious World of the Karlson Tube – Part II
In the first article about the original Kalrson tube, I was able to develop the BEM models and investigate the acoustic properties of this special type of horn/waveguide. I made no secret of the fact that I particularly disliked the directivity control. A few days ago, I had an exciting idea about how to modify the Karlson tube to achieve better results. The implementation wasn’t that complicated, and in the end I was quite surprised at how good the results were.
Round Acoustic Loading Horns (JMLC, SWH, Traktrix, etc.) – the Trumpets of Jericho?
Sometimes a slightly provocative headline is necessary to attract attention. Please don’t take it too seriously. But it should be well known that the origin of my activities regarding horn development was dissatisfaction with these types of horns. Personally, I just couldn’t live with the fact that these horns consistently focus the sound extremely narrowly (beaming). There is more or less a very small sweet spot where you can experience the full spectrum of the music. If you move away from the sweet spot, the sound image collapse very quickly. What I have also noticed repeatedly as a negative aspect is that the on-axis listening experience is often very direct, tiring, or even annoying in the high-frequency range. As always, perception is subjective, and it may well be that there are people who explicitly like this. It is important to me to emphasize that I am not claiming that my opinion is the only valid one. Nevertheless, in this article, I would like to describe and also demonstrate with help of a BEM simulation why I have come to this conclusion and why I consider these horn types to be obsolete. Continue reading