First of all, measure your space well. It is HUGE, really. Very powerful and clear bass with good punch for a 15-inch, but very strong. To perform correctly, it needs the right space settings and crossover. It indeed goes very low, lower than 30Hz, which for some reason they write. Measured at 25Hz +/-3dB. For its price, it is excellent for sure

It is able to satisfy even the most demanding in bass. With the appropriate settings, it shakes the whole house. It can produce very deep and clear bass, to the point where you can feel it in your bones. If there is enough space for its placement, I recommend it to you.