Wayne Parham Messages: 18758 Registered: January 2001
Illuminati (33rd Degree)
Oh my, it looks like the screen has introduced ripple of about 5dB between 3kHz and 10kHz, as much as 10dB between 4kHz and 5kHz. From that, I would guess the screen is fairly reflective, not fully transparent acoustically. Those peaks and dips look like self-interference from the reflection.
I think I would almost prefer a slightly more absorbent material because even though it would attenuate the sound, perhaps needing a smidge of EQ, it may not introduce that much ripple. Any other options? Have you measured other materials? I might be inclined to even try various fabrics to see what I could come up with.
As for the brushed edge on the 2226, I'd just use some flat black enamel and apply it with a small paint brush. You can get it at any hobby shop, the little bottles of paint used by model builders would work great.