Lula,
The Impacts are rated to 30hz and to my ears do very well on the bottom end. The reason I have always used a powered subwoofer is to obtain a full range system since I listen to organ music. Also, I feel that supplementing the bottom end with a powered subwoofer allows the amp to work a little easier and more transparent. Picking up from about 7hz in room to 30hz gives me the "slam" I desire, also including loudness control.
I believe the DI's would add to my enjoyment with there additional mid and treble drivers, but may overload my room in the bass region without the ability to adjust for bass volume.
The Impacts are rated to 30hz and to my ears do very well on the bottom end. The reason I have always used a powered subwoofer is to obtain a full range system since I listen to organ music. Also, I feel that supplementing the bottom end with a powered subwoofer allows the amp to work a little easier and more transparent. Picking up from about 7hz in room to 30hz gives me the "slam" I desire, also including loudness control.
I believe the DI's would add to my enjoyment with there additional mid and treble drivers, but may overload my room in the bass region without the ability to adjust for bass volume.