Off axis cloud placement


I am currently in the process of fine tuning my room which is 10wx25Lx10H.  I have GIK bass traps in all 4 corners and GIK absorption panels at first reflection. I have also treated the room with Synergistic research HFT's and a FEQ.  I have noticed that on certain recordings, the high end is a little bright. My dealer has also noted that the room was a little "hot".   I was thinking of adding clouds to help with this.  The sound is otherwise awesome.  My floor is wood with a large rug covering 85% of the area.  So now the problem.  The likely area of first reflection is occupied by a fan.  I am making two 4X6 ft clouds using Owen Corning 703 fiber panels.  Will they be helpful if placed just in front of the fan and just behind the first reflection point?  This will place one in the front third above the amps, and one over the listening position in the back third. Or is this just wishful thinking and a waste of time?

orthomead

@orthomead - Your problem may not be the "reflection point"

High frequenciy issues often occur at ceiling level - which is why you often see either large disks or cylinders hanging from the ceiling in large venues

  • I had this problem and it was rectified by hanging a piece of vinyl about 20" deep x 8ft long behind the listening position
    • right against the wall and butted up to the ceiling
  • the vinyl is very good at absorbing sound - it converts the vibrations into tiny amounts of heat, which is dispersed naturally
  • I finally used a vinyl roller blind and extended it about 20 inches
    • I did try longer, but it made no difference
  • I have also tried this at a couple of other residences and had the same great results

I started this experiment with was a piece of vinyl I had from a company that makes flexible signs - it is white and about 1mm think,and they will have the length you require (I suggest the width of the room)

You could try placing the "clouds" butted up to the ceiling (against the wall) to see if that helps, but I do recommend the vinyl approach

Hope that helps - Steve

 

 

@williewonka That is a solution I would never have come up with.  Do you have contact info for the company?  That seems like a real easy fix. Thanks Steve!

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@orthomead - you should be able to get the vinyl from any place that prints commercial signs in your area

But before spending lots of money on this, execute a proof of concept

  • go to the Dollar store and buy a plastic table cloth (cost about $5)
  • tape it in place using masking tape - but use a doube layer
  • If it solves your problem then you can look for a more elegant solution

You could opt something like this as a more permanent solution - then it would blend with the wall covering

Hope that helps - Steve