I have a small listening room (13 * 15). Because of where doors are located, the only practical location for the racks is between the speakers. The edge of the speakers is fairly close to the racks. I use a combo of Acoustic Sytems (8) and Art resonators (2) and they do help with the perceive image depth, height and center fill. I also have 4 Real Traps. I also have mild absorbtion at side wall and ceiling first reflection points.
That said, my DBX Drive Rack significantly improves the bass response over the above treatments. I use mild graphic eq to blend the bass and midrange at the bass driver/midrange overlap (the DBX is only seen by the bass driver). I also use notch filters (PEQ for severe bass spikes) and regular parametric EQ. I use XTZ to determine the PEQ/notch settings.
Perhaps in a bigger room and/or after a visit from the resonator pros I could achieve better results without the dbx. I am hesistant to cocoon myself with many more bass traps.
That said, my DBX Drive Rack significantly improves the bass response over the above treatments. I use mild graphic eq to blend the bass and midrange at the bass driver/midrange overlap (the DBX is only seen by the bass driver). I also use notch filters (PEQ for severe bass spikes) and regular parametric EQ. I use XTZ to determine the PEQ/notch settings.
Perhaps in a bigger room and/or after a visit from the resonator pros I could achieve better results without the dbx. I am hesistant to cocoon myself with many more bass traps.