How long have you use it?
For four months. Use with the PR: O 15 is a single amplifier (either 2600 or Peavey Yamaha 5000P) or active bi-amplification. Configuration tested for the outside, for a show home with more than 500 spectators, and for rooms up to 400 people. No problem for each service. + Three hundred people a second pair of housing would not be too much as application (and tastes ...). Small outdoor service only (it's not for its maintenance but the road). These boxes are up to the manufacturers specifications: take the 1000 Watts recommended. The integrated filter nickel agrees with the heads of the same range.

What is so special that you like most and least?
- Compact (the two boxes + heads + all my gear fit comfortable in my break)
- Performance
- Finishing
- Impact of severe
- Sound quality that would like the road for the price
- Power handling up to the manufacturer recommendation
- Good internal filter
- Sounds of room 350/400 people as possible in bi-amplification with active heads PR: O 15

Cons:

- Absence of Bi-Pass Filter (requires a disassembly if you do not want the filter)
- Restitution bass frequency
- Outdoor use only small interpretation.

Note that the impedance (4 ohms) is both a positive and negative, because on the one hand it allows to use an amp too powerful to use optimal but then leaves less possibility to put more housing in parallel on an amp.
Have you tried many other models before buying it?
Martin Audio, Behringer PRO 1800x, JBL, BOOST ...

How would you rate the quality / price?
Pretty good, better y'as from Martin but it's more expensive ...

With experience, you do again this choice? ...
No problem