One more try:
At 60 degree horizontal dispersion, it is 3dB down. Considering that bass is not directional, 500 HZ is when this becomes significant (directional); below that things are pretty much omni-directional.
In terms of the vertical dispersion, what I can tell you is that it is enough. You stand up, you sit down, nothing really changes. That's why we really haven't bothered to measure it. There's another neat thing about well constructed line sources -- they are often louder at 3 meters than one meter, even though we measure sensitivity at 1 meter because every one else does.
Isn't life grand?
At 60 degree horizontal dispersion, it is 3dB down. Considering that bass is not directional, 500 HZ is when this becomes significant (directional); below that things are pretty much omni-directional.
In terms of the vertical dispersion, what I can tell you is that it is enough. You stand up, you sit down, nothing really changes. That's why we really haven't bothered to measure it. There's another neat thing about well constructed line sources -- they are often louder at 3 meters than one meter, even though we measure sensitivity at 1 meter because every one else does.
Isn't life grand?