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

I've never seen or even heard of half & half colored ASC tube traps, but I do know that the reflective versus absorptive side can be identified by the location of the seam. One or the other is centered on the seam, but I don't remember which. Give ASC a call at (800)272-8823.

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.