"Arny Krueger" wrote in message
...
"Robert Morein" wrote in message

Considering placing stereo speakers on a wall with an exterior door,
asymmetrically placed.

The door is of dense construction, aluminum or steel over a composite
core. A double layer glass pane occupies 30% of the door area.
Wall is mahogany veneer.

Likely acoustic impact?

That door is petty much a broadband reflector. Of course, its apparently
behind the speaker. If the rest of the wall is plastered, you've got a
reflector with some diffusive edges wrapped around it, in a wall that is
also mostly a reflector. IOW, the door is probably a small influence
compared to the wall.

I'm trying to remember what speakers you are likely to use here, and how
their radiation pattern is.

Unipolar, front radiator, moderate directionality.
My impression is that the door is actually denser than the wall.
The glass is very rigid as well.
My guess is that the door is less of a problem than a typical hollow-core
interior door, which is light, flexible, and vents between the door and the
floor.