GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Upperbass horns – tone vs. distance

Post Subject: Upperbass horns – tone vs. distancePosted by haralanov on: 7/26/2012

I think it is very interesting subject and I’m looking for first hand opinions by people, using properly sounding upper bass horns in their listening rooms. I’m not interested in theoretical opinions – only by opinions, coming from personal listening experience.

Everybody knows there is no such thing as "sound of a driver" or "sound of a horn" – the sound varies depending on how the channel is being used – distance, angle, positioning in a room and many other factors. So if we take a given properly made upperbass horn channel, placing it in a big room away from the walls, then how does the sound change with distance? What I’m interested to know is there any optimal distance from the mouth of the horn (I’m talking about tractrix horn of let say 90cm diameter – the size of Romy’s UB horn), where the tone develops its maximum value. How does the tone changes when we listen to the horn at 1m, then at 2,5m and then at let say 6m away from it? Another important thing that deserves to be discussed is how does the type of sound presentation change with distance – I’m talking about the size and shape of the sound. Any deeper analyses of the subject are welcomed.

Best regards,
Petar

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