I've finally got around to taking some measurements with my new ECM8000 mic and ART dual pre. I started off with the LF measurements first (10-200hz) so I could see how the room acts with and without the superchunk bass traps. I will try to be as thorough as possible. Gear is listed below...
Marantz SR5005 AVR
Behringer EP4000 powering subs
(4) FiCar 18" IB Drivers in Line Array on front wall
LCR Econowave Speakers
Behringer ECM8000 mic with generic cal file from this site
ART Dual Pre sound card
Bass Settings: SW Mode - LFE (also have a choice for LFE+Main)
LPF for LFE - 120hz
Speaker Config : All speakers set to small
Crossover Freq : Front/Center - 60hz
Surround/Surround Back - 80hz
Room Dimensions are 18 x 10.5 x 7
Front eyes - roughly 9.5' from screen
Rear eyes - roughly 12.5' from screen
Subs in Line Array on lower portion of front wall
I took a measurement at front center seat and rear center seat to get a baseline of the rooms response. As figured, they both sound different, the LFE at the rear seats is stronger and more tactile while the front seats are not as much. I was hoping the superchunk bass traps would help with this... to a point I guess it did, not NEARLY as much as hoped, I could have been mislead by my ignorance of course..
Front Center Seat before Superchunks
Front Center Seat after Superchunks
Rear Center Seat before Superchunks
Rear Center Seat after Superchunks
After all graphs were taken, the db levels seem to be off, I'm guessing that the sound card level or avr was a little off? If you recommend new measurements, I can do that.
The biggest let down is the difference from no bass traps to both superchunks. Unfortunately I don't have the room for superchunks up front but I was hoping the two in the rear would make a noticeable difference, I was let down
The superchunks are about 5.5' tall, a few inches off the floor (to match my wall panels), to 6"-8" from the ceiling. I can take pictures if you would like. They are 36" faced and filled with pink fluffy insulation.
The only big difference was in the rear seat at about 66hz, it took about 15db out of the humongous dip, other than that, no big change
Below is the link to my REW files so you can take a look for yourself. If you want pictures of the room, I can do that as well. Thanks guys http://www.sendspace.com/filegroup/g...b4biRvHXdjkKhF