[gtpsuper24]

Ok have been looking at those GIK table/ Pillar traps and thought about making my own. Planning on using ats acoustic board 2" and use 2'x2' squares and stack them 18" high, make a frame and put a top on it. Is this good or bad idea. Got my superchunks in the front 2 corners, I finally go rew working so now i'm trying to figure out any thing else to do. Thanks

 

[gtpsuper24]

Well for the tables I could go with a 24" cube. The pillars i'm not sure yet what dimesions i'm going to do. After I run REW is there a way to test to find out were the best place to put treatments? I figured I could do the 24" cube tables and if I didn't get any decent results, I could cut them in half and do superchunks in the wall ceiling corners.

 

[gtpsuper24]

I got some results running rew, I moved the sub to two different places. Limited on were I can go with it right now. Yellow is the right side and blue is the left side. Any ideas on anything that can be improved.

 

[gtpsuper24]

I'm new to REW but the yellow looks like its much better

 

[gtpsuper24]

Ok I did a reading at the location I would like to put the table trap. Tell if I did this wrong, but I stack a few dvd case up to about 8inchs off the floor and laid the spl meter on it, at the listen postion there is a 58-60hrz null, that my main focus right now, so hopefully by fixing it even just alittle nothing else peaks or null somewhere else. Red waterfall is future table location maybe. I noticed a peak at/around 60hrz

 

[gtpsuper24]

So if I want to keep it on say the right side, yellow, I should take readings by moving the sub closer and further from the wall? Looking for the best reading? When I took the blue measurement and the yellow, I held the spl at ear height, with the spl mic pointed up. So from what I can tell the yellow waterfall has a null at 60hrz, and I should run a continious 60hrz tone? Similar to the subwoofer crawl, but I'm listening for a location where the tone is the loudest and that should be a good place for a table trap or something correct? I have acoustic fiber board so by making a table trap for example isn't really going to cost me anything, and I decided to go 24"x24" just cutting the boards in half, so if it doesn't work I can use them for something else without needing to throw them away. Should I use sine wav in the rew generator or is there something better?

 

[gtpsuper24]

If i'm trying to tame the 45hrz, wouldn't that need quite alot of depth and sizeable treatments? My superchunks in the corners are 17"x17"x24"x8' I was thinking about getting 4in thick 703 panels and putting them on the front of the superchucks to add some more depth to it. I guess my thinking was if I found a 60hrz peak somewhere in the room, I would put treatments there and that would help possibly raise the null? Would the room benefit from a BFD to help tame the peaks? I thought treatments were more for nulls and peaks needed EQed.

 

[gtpsuper24]

According to brucek my reading were off on the freq axis so they're fixed now.

 

[gtpsuper24]

Well I ran a sine wave at 59.5hrz and 60hrz and walked around the room to see where it was the loudest and the front left corner is were it is very loud, boomy, everywhere else it can not be heard. I tryed moving the sub out from the front wall closer to the center of the room and then closer to the wall and it didnt make much of a difference. So putting some type of treatment in the front left corner, that would help with decay time and help raise the null some correct?

 

[gtpsuper24]

Well I many measurements and I did the "crawl" to find the peak at 44-45hrz and found that its in the right rear corner. I had just a few panels, just enought to do about 32inchs. So I put them about halfway in the corner, centered. I know its not enought, but just to test it out and the peak dropped just slightly and the null raised just slightly, so I will be filling that corner in with larger bass chunks. The left rear corner isn't really possible to treat only the top 30inchs, no other way around that. I did a couple of measurements around the seating area foot to the left and right and forward and neither made any difference in the peak or null, but a foot or so forward was smoother response in the 70-90hrz range almost completely flat.