Initially, i've been stalking this product, maybe some one make the review of sound, quality or smth else, but no one does..
So, I decided to bought it and I get little satisfaction of the sound after replace eminence sigma 18" woofers. It's important to consider that I made box by my self and I'm not a pro with PA, but this loudspeaker deliver really clear, powerful and soft bass.
Maybe just the recommended box size (274 liters) is too big to care around.
I recommend run sub in large area. If you have parties up to 100 people it's definitely not for you, because you'll never run on full power..
Also, it absolutely helps to reinforce other PA systems in bigger events.
Running by behringer nu3000dsp (dsp allow me to cut all unnecessary frequencies and do other stuff) on bridge 25-85Hz. In future i have a dream that i'll upgrade into crown XLS 2502 or smth like this.
Nice product, hope i helped some one with the review