Originally Posted by ninja12
When you run PBK, the only sound you are hearing is from your sub right? For me, which I have the Velodyne DD-18, the fronts are on too so that I can see how the sub is behaving with the fronts. However, I can turn the amp off for the fronts and just look at what the sub is doing which is what I do. At the end, I turn on the fronts so that I can see how the front and the subs blend together and then do a little more tweaking if it's needed.
My experience with the Velodyne EQ is that it is easy, almost trivial, to achieve any sub response curve you want at any SINGLE MIC LOCATION.
However if you want to get good sub response across the seating area -- i.e., at multiple mic locations -- it is a bear. Forget about using their automated setup. Fixed, equally spaced, parametric filter frequencies just don't cut it.
Now if you do a manual solution with their EQ -- which lets you change the parametric filters in ways the automated solution won't -- you *CAN* get a clean result across the seating area. But it is a colossal effort. In my case I spent, quite literally, weeks on it.
There's a post link from me on the first page of this thread describing some of that long slog.
The thing is, you are making compromises all the time, and you need to do a lot of listening to the same content over and over again to find out which compromises are working and which are screwing up.
With the very first ARC release -- which was nowhere near as good as the current ARC release -- the first automated, completely un-tweaked, result from ARC blew away the best manual solution I had achieved with the Velodyne EQ. It was no contest. And when I went back with the Velodyne mic to see how ARC's solution did at various mic positions I found the charted curves from the Velodyne looked just as clean as the best, multi-location result I could get manually using the Velodyne EQ. And the AUDIBLE bass result was far superior.
Now of course some of the audible difference is due to the fact that ARC is also correcting the mains which means the bass blend from mains into the sub is improved. But still.
I've never gone back to using the Velodyne EQ. ARC does what I need.
If my room was such that I *HAD* to use the Velodyne EQ (with ARC on top of that) due to the degree of correction needed, I suspect I would simply use the automated Velodyne EQ -- which I know isn't perfect by any means, but would likely get me "close enough" that ARC could take it from there.