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.
One of the more prevailing questions after "Where to time align the subs?" is typically "Where to time align a center sub?".
When we introduce physical displacement between loudspeakers in multiple dimensions, we end up creating triangular pyramids with sides of different lengths between the loudspeakers and listeners.
These path differences create additional time offsets which make it even more challenging to remain time aligned for as many spectators as possible.