I decided that I wasn't going to touch my existing FR, and just add the 1200D into the fold...and hope for the best.
Reason being, I wanted to be able to do some AB testing to determine if I liked it or not.
It always takes quite a bit of time to integrate my FV15HPs, FTW21s, and Audessey. My EQ system is a pair of 2 band PEQs from elemental designs (eQ.2). They are effective especially with audyssey doing the majority of the work, but it takes time to integrate them to my liking (I want certain frequencies amplified by the nearfield FVs and certain ones by the FTWs).
My FV15HPs are tuned to 12hz, the 1200D is tuned to 50-60hz, and then I have my sealed FTW21s.
I wasn't expecting them to integrate all together by leaving everything as is, but this was more about Tactile Response that a better FR. If I like the TR better, than I'd go back to the drawing board and try and integrate all 5 subwoofers.
Here's where I landed just by inserting the 1200D, and adjusting the setting on that and keeping my other EQ settings the same:
Red is my FR before, and blue is it after....
Who knew! It literally integrated right in!
It probably helped that I had a rising house curve before, and this flattened it out, but still...no phase problems at tune, it just filled the gap to make it flat. This probably saved me a half day of EQ'ing all these together.
I haven't done an AB comparisons yet, but first impressions are WOW! Lots more slam and TR! It certainly reminds me of when I had my FV15HP directly behind me. I'm amazed that this little 12in sub can keep up, but it definitely can...even with it's tiny footprint (14x17x16).
More to come, but so far I'm impressed...