Two years ago I brought home a new pair of Magneplanar 1.7s. I'm listening to them as I type. For most of those first two years, the mylar in the panels was radiating a smell. They exuded it even when nothing was playing. It didn't fill the room but I could always smell it when I went near one. Sometimes louder music made it a little more active, but never enough to ruin the experience--it usually radiated in a 3-foot radius maximum.
The panels eventually settled down. I just stuck my big nose within 1" of one speaker while it's playing, and no more new polyester odor.
The panels eventually settled down. I just stuck my big nose within 1" of one speaker while it's playing, and no more new polyester odor.