Originally Posted by Marc Alexander
It looks like you do have more ringing around 50Hz & 70Hz through the MiniDSP. How are you setting up the MiniDSP? Via the guide? Manually or via REW?
I definitely believe Audyssey XT32 SubEQ will be an upgrade over your current sub response. The MiniDSP does have good resale value (I actually could use it).
I don't think the miniDSP 2x4-HD is causing issues - I changed a few other things between those runs too like Line In to LFE In. Anyways, I decided to give separating the subs another go. Here is a question that its at the root of one of my deep misunderstandings in this entire process. To ask the question, I'll show this...
The Initial measurement with no PEQ, no EQ, and 200Hz Xover looked like this:
There's that 30-60Hz 20db dip again! I turned both subs in all different directions and this was the best it got. I thought to myself, even though its basically forbidden to boost a PEQ filter so much, why not give it a shot?
I arrived at this EQ filters. I am using REW to generate the filters, but the two boost filters here I added myself:
This generated this response.
Looks good, but sounds, well, crazy in sweep form. Here is the audio.
Sounds like an explosion is happening midway through. How does that explosion generate a semi flat FR? It doesn't seem to make much sense to me.