I finally put up the acoustic room treatment and what a difference. The sound is fantastic. I have never heard my music sound so good. The frequency response is flat at the low, mid and high end of the frequency spectrum. The true test will come when I bounce some tracks down to CD and play them in the trusty car. If they play well in the car and on my home hi-fi system, it will mean that the room's acoustics and monitor system are translating very well.