I just got a BFD last night, and did some tests using the ECM-8000, I'll be able to play a lot more tonight and during the weekend (I only slept 4 hours because I could not refrain from "playing" a bit with what I could get).
I had been using the eq on the receiver before getting the BFD, and I only used one -6 db @ 40 Hz since that is my highest peak. I removed that before modifying anything again since my HD-A1 is connected via the analog inputs (I am not using HDMI since my TV is a Loewe Aconda set with only component inputs, and the HD-A1 does not support component video + HDMI audio) and I didn't want my other sources to have an extra filter there.
Here is my unfiltered response from my primary listening position.
original.jpg
It is slightly different from measurements I made about a month ago, but since I started late at night I didn't bother much fiddling with it, I was indeed impatient to try it.
After several filters (I think it was seven of them, I believed the mdat file saved the filter values and I didn't the paper where I wrote them to the office) and a raise in the sub volume I ended with the following graph:
result.jpg
But I wanted to see how much could be done and although I've read here it is a no-no, I did add some boosts to the mix and got the next graph. If I remember correctly they are:
20 Hz +4 Q10
55 Hz +8 Q10
gain.jpg
I believe I can do a better job with more time, what do you guys recommend?