Acoustics and chair

Mateored wrote,

"I am surprised by how many dealers have those tall-back Ikea chairs that go above ear level. They always ask me why I don't sit down, but the tall back completely changes the sound. How do they not know this?"

Not only that, the Ikea chairs change the sound even when you're not sitting in them. The sound is much better when the chair is removed entirely from the room.

I've said it before and I'll say it again. It's the foam in the chairs that's the culprit. Think of it like Sonex and other open cell foam material.