Wolf: Exciting and again, I take off my hat and bow. Great job. Cool project.
A reasonably long OT follows but is still somewhat in line with this regarding dispersion. How it happened that the development with Stig's speakers went in the direction they did? I don't know if it's because Stig changed his sound ideals or the market, the demand, changed and he followed that trend.
A bit of HiFi history. Stig Carlsson's apprentices included John Larsen, Peter Steindel and Ingvar Öhman.
Of these, outside of Sweden, John Larsen is the most famous. Here one of his creations, clearly influenced by Stig Carlsson:
"Larsen speakers continue the development of the highly acclaimed Carlsson Acoustics OA-52, which Stig Carlsson developed in the 1980s with John Larsen. John Larsen worked with Carlsson for 16 years, and when Stig Carlsson died, Larsen took over production of Carlsson Acoustics speakers and further improved on that innovative design to create the Larsen speakers."
Manufacturer's Comment Editor: We are very grateful to Art Dudley for all his high praise and many accolades of the Larsen 8 speaker in his insightful and positive review. We appreciate all his efforts. As Art rightfully states, the Larsen 8 is a speaker for music lovers who want to forget the...
www.stereophile.com
But FR quite bad, should be added:
Sidebar 3: Measurements I was intrigued by the Larsen 8 loudspeaker. More than 40 years ago, I had auditioned a pair of the late Stig Carlsson's unique Sonab speakers and come away with mixed feelings: While Carlsson's original designs, with their arrays of tweeters pointing in all directions...
www.stereophile.com
Then Stig Carlsson's model OA 12 from the 1970s actually measures better, measured by the state's testing institute. The lower curves are distortion measurements:
OA 12 was Stig Carlsson's own favorite among the 1970 models. Now available to buy upgrade kits for them, bass tweeter, plus crossover. Kit made by Ingvar Öhman, or if it was John Larsen who made that replacement kit, I don't remember. Then they look like this, with that upgrade kit:
Here, Stig Carlsson went "all in" with his model OA-2212. Or everything rather out, outwardly directed that is, as seen in the picture.:
Here are the models for those who are curious to see what they look like:
Välj en modell nedan för att fortsätta.
www.carlssonplanet.com
Here are Peter Steindel's speakers:
Here is a model from Ingvar Öhman:
Dynamite Audio to the People
guruaudio.com
Edit:
By the way, Stig Carlsson himself was not involved in the creation of Yamaha sound, HiFi division. It has been claimed that. It was Sonab, Stig's disciple Peter Steindel:
"Yamaha did not manufacture, develop or sell hi-fi at that time. Sonab entered into an agreement with Yamaha to build a development department and manufacture of hifi in Japan. Clas-Göran Wanning was the person who designed the electronics in Sonab. He was stationed in Japan and jointly built Yamaha as a manufacturing company of hifi for Sonab. So, Sonab,were the first hi-fi products that Yamaha manufactured. Lars Lallerstedt was responsible for industrial design. When Sonab withdrew from hi-fi, Yamaha had to take over laboratories and development department and Yamaha began to develop, manufacture, market and sell hi-fi products under its own brand.
Sincerely
Peter"
Sonab:
"Stig Carlsson began designing speakers in the 1950s. In 1966 he founded the company Sonab. In the late 1960s, Sonab ended up in an acute economic crisis and was taken over in 1969 by state-owned companies. State-owned companies gave Stig Carlsson substantial research resources and after a couple of years, the 1970s series could be presented. In 1978, state government shut down Sonab and all speaker production, this after losing one hundred million kronor by trying to manufacture and sell poorly developed mobile phones without a market."
The mobile phone thing, I wonder if that's true, but other than that it was correct.
sv.wikipedia.org
Edit:
Okay, it was a rather long OT, I admit, but a little HiFi history is fun to learn about. I think so anyway.