Glad you like the Dcon, but 2 questions as I am not sure if we talked about it before or not: 1: What is your enclosure tuned to? 2: What is your SSF set at? There were a number of instances where your Dcon was playing very low frequencies, in a few cases the microphone could not pick them up or my office headphones could not reproduce them. When you play well below the tuning of your enclosure, you risk damaging the sub woofer, as the air spring effect is gone and the shape of the enclosure is no longer controlling the movement of the cone. So please be careful when pushing the driver below tuning, or even playing below tuning that much.