Prof. John Vanderkooy presented an AES paper offering analytical proof and compelling evidence that the acoustic center for low frequencies resides in front of the loudspeaker at a distance of approximately two-thirds of the baffle radius.
"If a battle can't be won, don't fight it"
- Sun Tzu -
Whenever we experience too much of a particular frequency or frequency range, we're tempted to resort to equalization to resolve the situation. In this article I will demonstrate that the effectiveness of EQ relies entirely on the relative level separation from other sources.
A short time ago I was very fortunate to have gained access to a former air force base featuring ample real estate with a solid underground.
An ideal environment for subwoofer measurements where I got to measure all typical inverted stack cardioid setups.
And while I’m still in the middle of processing all data, I would already like to share one preliminary but potentially interesting observation.