JBL M2 speaker system ....

Just installed in my living room and the M2 are sublime.  Had to run new elec. circuit with true 20 amp capacity to feed the Crowns and had to install the amps remotely to avoid fan noise.  If you research these speakers in depth you will find they are currently the best available at any cost.

The program can be downloaded from the JBL Pro website onto a thumb drive and then directly into the Crowns.  This is a sort of  default program to make the speakers generally perform.  There is further programming that can be done thru a PC and other programming on line in which you can further tweak the speakers to your specific room.  All of this available to the owner directly without having to go thru a third party.  I have not done the further (room specific) tweaking since I am happy with the basic program and fear I might mess up a good thing.