Proyecto NEMA
Member
I would like someone to shed some light on the subject for me.I've heard that each type of speaker interacts differently with room modes. Is this true, is there evidence or are they just assumptions?
that each type of speaker interacts differently with room modes.
Exact. There is a lot of text out there that says that an open cabinet influences the room less than a closed box and this in turn less than a reflex. IS THERE PROOF OF THIS, "SCIENTIFIC" INFORMATION?Do you mean dipoles vs monopoles or something else?
I would think the opposite since the sound coming out of the back reflects off the back wall and around the room in different ways, depending on the room.Exact. There is a lot of text out there that says that an open cabinet influences the room less than a closed box and this in turn less than a reflex. IS THERE PROOF OF THIS, "SCIENTIFIC" INFORMATION?
Not less but different.Exact. There is a lot of text out there that says that an open cabinet influences the room less than a closed box and this in turn less than a reflex. IS THERE PROOF OF THIS, "SCIENTIFIC" INFORMATION?
Exact. There is a lot of text out there that says that an open cabinet influences the room less than a closed box and this in turn less than a reflex. IS THERE PROOF OF THIS, "SCIENTIFIC" INFORMATION?
Seems backwards. Planar dipoles have a figure-8 pattern for frequencies with wavelengths shorter than the panel dimensions, so do not radiate as much to the sides or top and bottom, but the back wave is as large as the front. And deep bass transitions to a point source pattern. Sealed speakers radiate from the drivers, typically the front of the box, in a pattern roughly 180 degrees across horizontally and vertically (subject to box dimensions) and narrowing as frequency goes up. They have little response behind the speaker unless there is an additional driver on the sides or back. Ported designs add radiation from the port, but that is usually tuned low for bass reinforcement. As frequencies drop below driver dimensions the radiation pattern moves more to a point source that radiates equally in all directions. Radiation patterns for speakers (among other things) are typically represented in "Pi space", the amount of a sphere the speaker covers, or angles from a centerline.Exact. There is a lot of text out there that says that an open cabinet influences the room less than a closed box and this in turn less than a reflex. IS THERE PROOF OF THIS, "SCIENTIFIC" INFORMATION?