Ok, i think i have arrived at the final setting
Mounted both BK’s under my left seat today. This is the best placement yet!
During VS measurement it was not conclusive doing 20hz sine waves, as the in phase/out of phase varied over the bandwidth, some frequencies, espesially in the sub-20hz are was better out of phase, and worse above. So kind of like two different subs.
So i used sweeps instead, and here you can see how i varies. Also a steady tone has time to build up "the rocking chair" effect, while with real content the frequencies varies all the time. But it was easy to feel that the in phase setting was best with real content.
The numbers are not quite the same on MA’s vs BK’s in pic, but the point is the shape of the curve and how it changes. Title says what is used, and note the 3 numbers i always use. In phase gives highest Z-axis, and also feel most effective(i turned off X-axis to make it easier to see).
Look at the last pic; out of phase, and how the 20hz Y-axis shine. Not so much lower and higher
But everything improved with this mounting. I don’t hear the BK’s work that much anymore, as they are under the seat(more isolated), they shakes the armrests, footrests and seat in general more than the MA’s(which lift you, but not as much shake). More immersive, if you will.
They really both have there pros and cons, and none of them can do what the other can, so together they really complete the experience. The MA’s have the wobble effect sub-10hz(and luckily the BK’s in the front doesn’t affect that, even in phase), while the BK’s has the violent shake between 10 to 25-30 hz(and they work more freely with the suspended front/isolators). With two BK’s pr
seat you gain headroom, and don’t have to drive each so hard= even less noise. And they are both very impressive in what they can do
On top of that the TR from the NF’s and "down-to-5hz" FR and PV of the FF just makes it sooo cool watching a movie.
Just did a quick test with race scene in RP1 and the attack scene in JA, and i was just smiling