JBL horn speakers, imo, are far superior to Klipsch, which make my ears bleed.
Go lightly on the acoustic panels and forget bass traps.
I was watching a few Audioholics online youtube videos last night.
One about placing the speakers properly in the room, and the other about using too much room treatments. I whole heartily agreed with both.
There is a huge difference between these various AVR auto EQs and the Dirac. When listening to music thru the AVR (BD concerts and youtube) I turn off the EQ....otherwise it just sucks the life out of the music.
Listening to music via the Parasound P7 pre-amp from my Mac, the Dirac is enabled. And there is NO compression of the music at all.
When I get the proper mic (UMIK-1) for the Dirac and a 7.1 usbDAC, then I'll upgrade the Dirac to the full 8 channel suite.
MiniDSP, in Hong Kong, sells stand alone units with Dirac onboard, and the UMIK-1. So Dirac can be downloaded to a computer or get the miniDSP box.
If you go to dirac.se, you can download a free 14 day trial stereo suite.
But you do need the mic....I used a voice mic, which rolled off the top end at 10k...using the UMIK-1 will take the FR to 20K.
And with the Dirac, you can adjust the FR to what ever you like, to fit that concrete environment. So you have no worries, if you go with horns, which will place the sound right at the seats.