Zagaja, posted an interesting document in the thread “Who builds horns?” It looks like Polish Autotech Company stated to organize their horn in some kind of complete systems. That is already something, a few comment I would like to pass,
The lustration shows the Autotech Universe speaker, as I understand it was setup at some kind of trade show in hotel room.
The things on a right and the horns on the floor are irrelevant. The Universe consists of 3 horns. As I can see one La-horn of probably 125Hz, one 7khz tweeter is also La-horn and looks like odd profile diagonal horn. I said odd profile because I do not see any proper profile in it. The mouth might be let say 65Hz but I do not see the proper long semi-parallel section next to the throat. The horn looks like beginning to open right the way and mach faster than what I would expect from parabolic curve. The opening rate is rather conical but with diagonal twists. There is nothing specifically wrong with it but it makes it hard to predict how it might sound. I absolutely applaud to the idea of diagonal horns. I have made countless drawing of them myself and I absolutely love it.
The configuration of MF horn is a bit controversial. Why they lift the MF horn up? I Guess then wanted MF to radiate at ears level. I do not like this configuration. What I would do is to make the 125Hz horn not to be La-profile. This would save good 4-6” inches of height. Then I would convert the horn into upperbass, lover it all the way doe and add of more small MF horn. In a way it would be a move toward to Macondo – but unfortunately the move toward to Macondo ideas is absolutely unavoidable… I think that even keeping the horn as is an extra MF charnel might be added, something similar to the AG Trio only with position of the tweeter as the Universe do and with this sexy diagonal horn. BTW, with diagonal horn it might not be a need to drive the Universe lower MF channel too low and they might go away with a smaller horn.
How, this thing would sound? It would deepen from what drivers Autotech use and how the drivers are used in the horns. Regardless what it is I see a good signs of interesting progress in what Autotech does. Let face it- the only reasons the company exist is because they have a big and expensive plastic press. The Germans Avantgarde Acoustic started when Holger Fromme inherited from his father plastic press and was contemplating what to do with it. I know, I know at Avantgarde Acoustic site they will tell you a different story – that Holger was a “great horn designer” since the time of Archimedes but it is not too accurate. So, for Autotech is very similar to the Avantgarde is absolutely irrelevant what they press – horn of handles for brushes to clean toilets. The rule of the game is that if you own a press like this then you do not want it to idle and do nothing - you want it to do some kind of production runs. The Autotech presses a lot of this, inducing hors:
It looks like the folks who run the Autotech audio department moved from pressing individual horns to forming horns into some kind of complete systems. This is a very good move and I am sure we will see more coming.The Cat
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche