So I placed the LV12F in the same location I had the 12.17. 1st image is the pure direct graph of the LV12F and the 3rd image is the PD of xtz 12.17. Both subs where calibrated to be 75-76db with the master volume in avr to be at 55db. Both subs performing similar before any eq is applied. The second image is after audysey for the LV12F. Very good response for a single sub. Yet to use mini dsp and add the xtz 12.17 and check how it’s integrating in a dual set up. I’ll post those in my other threads. This I shared so pple can get an idea how the LV12F performs. Doesn’t go all the way to 19 as in specs in my room. Stable till 23-25 hz I guess and starts to drop at 21hz