Not sure what type of concerts you are attending but try in the range of 105-110 dB(A) with some reaching 115dB(A).
Granted these are concerts in appropraitely designed venue and not ones you would find in a neighborhood or street fair.
The systems installed in the park are 70V systems which have a limited frequency range regardless.
Could they run everything at a lower level? Sure but you are going to have dead spots between coverage zones.
This isn't elevator music in a restraunt, it's a theme park.
You are correct in that everyone hears things differently.
What one person may think is an appropriate level, others may think is too loud hence the entire reason this thread was started!
For example, I think the anti rollbacks on Firehawk are extremely loud and are near painful at times. Do other people think the same? Doubt it.
I personaly enjoy the music. They can't please eveyone.
I don't know what your Radio Shack SPL meter is reading, but most concerts run comfortably around 95 to 100 at FOH. There are several factors that play into this as well (distance of front of house to stage, the fact that most meters only measure the highest frequency in their range, etc.) Bar none, if it's too loud, it's uncomfortable.Distributed systems have only a few advantages to traditional "8-ohm" setups. You're correct in that they have a weaker response, however, I stated that a properly designed system will allow you to have a better response and coverage. In this regard, blasting Daniel Powter's "Bad Day" throughout the park with no definable treble and bass makes perfect sense. It IS an amusement park, after all.
I'm glad you enjoy the fact that the park plays cool music. After all, nothing says a great day at Kings Island quite like hearing Adele's "Rumor Has It", a song about cheating and betrayal.