Warmth is assoiated with the upper bass to lower midrange frequencies, say from 160Hz to 400Hz. You may be experiencing cancellation in this area due to "floor bounce". Using a mirror placed flat upon the floor you need to determine the reflection point. Place a pile of soft pillows or blankets at this point and then sit back and listen. A spoken male voice, cello or solo piano are recordings that will readily show the effect.
If this is not the case, then try moving your speakers and/or listening position closer to the wall behind them. Do it in small increments and be sure to adjust the speaker's toe-in.
If neither of these two suggestion work, then you might try playing with your interconnects starting from the source component. Cardas and Discovery come to mind, but there are other very good and inexpensive cables available. I just don't see the need for the radical restructuring of your system as suggested by others. They are not as good as the McCormacks and Classe products, but the Adcoms are good performers. However, if you really want to get radical, try a parametric equalizer like the Presonus EQ3B.
If this is not the case, then try moving your speakers and/or listening position closer to the wall behind them. Do it in small increments and be sure to adjust the speaker's toe-in.
If neither of these two suggestion work, then you might try playing with your interconnects starting from the source component. Cardas and Discovery come to mind, but there are other very good and inexpensive cables available. I just don't see the need for the radical restructuring of your system as suggested by others. They are not as good as the McCormacks and Classe products, but the Adcoms are good performers. However, if you really want to get radical, try a parametric equalizer like the Presonus EQ3B.