We are getting off track of the OP... so I will take us a bit farther...
Mike... my thoughts.....
The "system" should be exact for each speaker...mixer cd player and same song... there would no way to compare any other way...
Pick a gig song like "Billie Jean" if you try to let everyone play what song they want to hear or do a "hey play this song" it'll be too messed up...
Hear Billie Jean through each set, you'll get to hear the difference's. How could anyone say, well our system sounds better when we play XYZ song...
1 song 1 set of gear.
As far as price point.... how about going with what manufactures boast. They say this system will be good for XYZ number of people..... put them on the spot to be honest.
It would have to be "speakers only" tested..... bring in your set, for powered here are your two lines coming from the mixer, for passive, here is the line from a good amp..... don't let anyone bring in anything else...
What about 3 ways that require an active crossover, three lines and three amps?


