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Absorption placement question Effects Pedals, Units & Accessories
Old 31st August 2011
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Absorption placement question

I was unsure of what to enter for search terms. Like many, I have a small room: 138"x141"x94". So it's not even 8 feet tall, and it's close to square. I am building some 4" thick absorbers using Rockboard 60 that I get from ATS Acoustics, and the design is 4 feet wide and 6 feet tall with 'swiveling' feet at the bottom so they can rest against a wall or stand in the middle of the room depending on the situation. The 6'x4' frame actually has a 2 foot 'buffer' at the bottom, so there is 4'x4' of insulation within it.

This is so they can be arranged as a PVB-style apparatus, or set up at reflection points for mixing purposes.

Now when it comes to using them for mixing... I was reading about air gaps, and it appears that I stand them up at the first reflection points, and then create about a 3 foot gap between them and the walls, effectively placing them very close to listening position/speakers. Hypothetically this would offer decent absorption down to 100hz because the 1/4 wavelength for 100hz is 2.8 feet.

Would this be okay? Or would it have an undesirable effect on the listening environment? I also understand that the waves would be travelling at an angle, but I am new to this.

EDIT: And so I am not having multiple thread where unnecessary, would anyone have a clue as to how long the 'feet' on these panels should be to make them stand sturdily?
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