ASC tube trap full round with dark and light sides - diffusing vs absorbing

Hi, thanks bdp24. Yes, I did call them, but the person who answered had not worked there long enough and did not know.

And yes, with one colour there is a single seam so it's easy to know which side is the diffuser. But with two colours, there are two seams; one seam each time the two colours meet one another.

Ah ha, okay. Were the two-color traps a limited time offering? I’ve never seen even a photo of one. I'll be setting mine back up again soon---I'll have to give them a call myself to find out what the seam side is.

If you have a single colour, the seam side is the absorber.

At a distance of about six inches, speak into the tube trap.  Turn it 90 degrees and do it again.  The absorptive side will seemingly swallow your voice.

Got it. The light side is the diffuser. Thanks.