Recently, I was at a wedding. Very very large hall.
There were only two speakers being used. QSC K12 Active speakers.
I felt that they would be superb for Home theatre use. Probably not for audiophiles or for fine music but I felt they were excellent for those (like me) who use their home theatre room, exclusively for movies.
Originally, I had JBL synthesis 3 system. They came with active switching - between its tweeter and its horn, based on the listening mode. That made it easy for me to compare the tweeter and the horn.. Clearly, tweeter was preferable for music and the horn was preferable for movies, from the same speaker.
I still use those speakers but as rear channels, because I chose to go with a larger sound stage and larger woofer and horn.
Currently, I am using Bryston 7bst mono blocks and Electro voice two way speakers with a 2" horn and am very pleased with the setup. Again, its not a set up for the true audiophile but they are quite impressive for movies - because of the large sound stage (12" or 15" woofer? I forgot.).
My recent experience in audio - I made the decision for two other home theaters of friends. Essentially, I used Anthem processor, QSC pro amps and Legacy audio speakers. legacy Audio Harmony Center HD in wall was excellent. Probably better than my Electrovoice? may be.. I am writing these details - just to give you an idea of my tastes/preferences - so that you can understand my limitations and experiences.. Of course, the Bryston 7BST amp is much superior to the QSC pro amps.. but they are also very expensive.. I felt that the QSC K12 active speakers were very very good, for their under $1000/ea price range.
I felt as if the design of the amp and the speaker combination made a great match. Its not always easy to mate amps and speakers. Also, in my situation, I tried 3 way electrovoice, which were more expensive than my two way but I didn't like them. I had even tried digital crossovers for the 3 way speakers. Then, I realized that a simple analog crossover is fine, if properly designed/tuned for that combo.. Now, adding a built in amp is an even better option.. I guess that's why Meridian speakers are so well regarded for their excellence.
I like the directionality of the horn based speakers - in a typical home theatre set up, the width of the screen is not always substantial and in any screen width, it is quite desirable to me, to be able to isolate sound from each of the front three speakers. It enhances the audio experience - for me.
Also, as I am getting older (50+), I find that I have lost hearing beyond 8k (according to mosquito noise test). Hence, I cannot appreciate pure audiophile speakers going up to 20 Khz range anyway.
These QSCs seem to be the right "sweet spot" for me.. Hence, these might be desirable for those of us in the 40+ range..
BTW, you should buy a processor with XLR output, in order to use these speakers. I don't like "conversion from RCA to XLR" in the path. Less in the path is better.
I am writing this, not to start an argument or anything, but as a suggestion for the 40+ crowd to consider..
If you want to test your hearing, google mosquito noise hearing test. There has been a discussion on AVS on this very subject, in the past..