I have a pair of DE120s and noticed one of the gaskets was slightly off center, covering the very edge of the mouth of the CD. So I peeled it off to re-center it. Turns out the bug screen is held in place by the gasket, so the screen came off with it. Since the screen was off I thought I might as well take this opportunity to test with vs without. Glad I did, because I had always thought the screen was just for bugs, but it appears to help quite a bit. Very likely an important part of the driver design. The screen was off for the first sweep, then I placed it on being careful not to move the driver between tests.
Red = no screen
Blue = with screen
Red = no screen
Blue = with screen
