I made sure to do allot of research before getting these, and I was a little hesitant due to my loyalty to JBL. A loyalty that no longer exists. After about two months of owning a pair of these, I can officially say that these speakers perform flawlessly with no hitch. The sound quality is not only unparralled, but it stays that way, even when I push the speakers to the limits. With that being said; knowing that the smart DSP keeps them from exploding, I have an incredible peace of mind knowing they won't fail. I have truly pushed my pair to the limit (DJ-ing, allowing friends to use them for a concert, traveling with them all over the place, using them during a windstorm) and they have not failed nor shut down. The versatility on these is also impeccable. Whether you're sending straight from the mix, snake, daisy chaining or even playing off a phone, the interface works perfectly. The only thing I can't boast enough is the clarity. Sooooo clear, and perfectly balanced. I've used JBl, Yamaha, and L Acoustics most of my life, and these blow those out of the water. Hands down, this is a best investment to anybody looking for a phenomenal loudspeaker experience. I would advise you to get 650's over 550's. Though they're both great, but the kick is much more prominent on the 650's. Thanks for reading.