Bill_Urick wrote on Mon, 02 March 2009 19:53 |
Just checked. Yes, it takes the rug and the 703 to kill it.
|
I think the 703 in the ceiling is too dense. It has a too high surface impedance, which is reflecting mids.
So What *could* be happening is that because of this too high surface impedance you have a standing wave / flutter like problem happening on a very narrow band, caused by the parallel surfaces of the floor and ceiling. which you indentify as a ringing.
Your ceiling is 8', so around 2.40m, which means you'd get full cancellation at this point from ~68.75Hz wich means ~550Hz can be a problem freq too.
Also, you only can kill it with the 703 + the rug which can support the point that the 703 has a too high surface impedance. I have seen 703 only when in the US (we don't have it in Europe) and I felt this thing was not what I'd be using in a studio (indeed way too high surface impedance). Take this with a grain of salt, but that was my feeling about it.
Try this: give an angle to the ceiling tiles (a slope of more than 3" per 1').
If the problem dissapears, then we have identified the problem (hopefully...)