I bought 4 2 months ago, but I've u the opportunity to work with several times, and this is the reason I invested in this model.
I also worked with numerous brand, among other Turbo who sold his patent Taichee TD (The only true Pro brand of China).
The boxes are very well designed, it's done to the costal tourring, and HP is not much better view is that Precision-divices in 21 inches 1000 W AES does not laugh!
It is noted on the speaker and the technical 700W rms, but inside they are really so it PD.2150 quiche!
What I like most is the performance of 137dB spl, their sizes, their sound down very well in keeping a great punch.
The value for money is beyond measure and I will buy 4 more ....