Before and After - no BFD

[BrianR]

I have begun playing with REW and have tried to improve my situation without a BFD. For a start, I had this:


I adjusted the phase, crossover and repositioned it (actually just turned it 90 degrees in it's existing location) and got this:


I was surprised that turning it made any difference - it's a downfiring sub. For kicks, I took measurements right at the sub, on three sides, and got different results in the front. I realized that the ports were in front and affected the sound so maybe a twist would change things. It did! That did more than moving it to 2 different locations.

I also tried a piece of plywood under it thinking a different surface (than the carpet) would make a difference. No change at all!

So, other than recommending a better sub that actually plays something below 35hz are there any other ideas for how I might affect the curve? I'm guessing the easiest is to break down and get a BFD but enjoy the challenge of finding other ways before turning to an EQ.

For those who are curious, this is an MTX 12" woofer. Only $150 and I suppose that's why it doesn't have any bottom end. I got it before I really started understanding some of this stuff ... the specs say it only goes to 35Hz and I guess I've verified that!

[brucek]

You need to change your graphs from linear (LIN) to logarithmic (LOG). It's an ICON at the top of REW called Freq Axis.

The response is fairly good, but as you say, a BFD would smooth the peaks out somewhat...

brucek