Originally Posted by Nalleh
I am not sure if you are saying the same thing, but my experience is that it is better to have "medium" combined Z and Y axis movement than "maximum" Z only movement. It feels bigger when several axis are excited at once.
That is why it is recommended to mount the MA’s in the rear to get more of a rocking motion= more axis excited.
Thanks for the info everyone!
I really noticed the back and forth rocking motion from the MA’s more when I added the soft isos. I don’t seem to have nearly as much of it though compared to the X and Z axis which are generally a lot of higher in my readings, but is this phone placement specific at all? I lay my phone long way, horizontal on my seat so it would make sense to me that it would be able to have more X axis movement this way with more surface area for potential movement along this plane, but maybe that’s irrelevant.
Now that I’ve finally got multiple devices to tune for TR, I’m going to be tweaking the NF, BOSS, and MA’s with VS as my guide. Curious how phase affects them all together, especially since the iNuke phase I have on 180 now, but that’s apparently normal phase for these amps.
Now that I have a proper platform isolated well, I’m finding SPL much less important from my subs; but I still listen pretty loud to most material for maximum TR the way I’m calibrated, around -8mv lately.
Looks like I’m getting pretty good ~10Hz movement when needed, but the 12-20Hz does level off pretty flat in most scenes and then the 20-35Hz really hits with authority. This is with a 25Hz LPF on the MA’s and 30Hz on the BOSS. VNF subs tuned to ~21Hz with a more shallow 12dB HPF.
Here’s a few more scenes, timestamps in the title:
Now the phone directly on the BOSS platform for fun to show what my feet feel when I’m not reclining during the Hulk Smash, crazy Z axis energy:
And Hulk Smash in my seat: