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Accoustic Gobos
Old 15th August 2005
Here for the gear
markknopfler66's Avatar

Accoustic Gobos


I am trying to find some way to make my own gobos to cover the drums in order to kill the sound reflections and reduce the risk of phase cancelling. What is the best material to build gobos?
Some of the material that I can find here are:
-Mineral Wool
-Glass Wool
-Accoustic Foam with pyramids on the surface

Thanks for your advices.
Old 15th August 2005
Gear Guru
Ethan Winer's Avatar


Any of those will absorb mid and high frequencies fine. Fiberglass is probably the cheapest, and you can compress 12 inches (R38) down to only 3 or 4 inches thick and keep it in place with chicken wire, covered with burlap or some other soft and porous fabric.

Old 15th August 2005
Lives for gear
HudHudson's Avatar

And keep in mind that the mass of the gobo is also a factor in how well it works, so consider making one side of the gobo absorptive as per Ethan's advice and put some hard high-density material (like gypsum drywall covered with cloth) on the other side. Some of the gobos in my tracking room weigh over 100 lbs and I wish they were on casters...
Old 15th August 2005
Lives for gear
Saucyjack's Avatar

Not to steer this thread too off course.
But I may need some large(rolling?)Gobos to use as a movavble 4th wall in a mixing environment.
Probably will need at least 9 ft high and maybe 8-10 length.
Any thoughts?
Old 15th August 2005
Gear Nut

gobos on wheels

I have 40 or 50 lineal feet of gobos on wheels that I made 4-5 years ago. They range from 4-8ft high (could easily be 10-12ft). I have them in pairs or trios hinged with door butts and they are panels 2ft wide on casters. If you hing 2 or 3 together you can move them in any configuration you need to form a room or wall.
They are made from semi rigid fiberglass (2" thick different densities) covered in cloth with 1X4 or 1X6 sides, 2x4 horizontal edgewise braces, and a plywood back. There is a dead space between the fiberglass and the plywood.
If you would like a picture send me an e-mail to "keystrokeslc AT comcast DOT net".
The pix are about .5meg and I don't know how to post them here at a reasonable size.
The casters are a requirement for me when I work alone and in general save time when setting up. If you can build a large box you should be able to make these.

Elmon May
Richmond, VA
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