Hi,
Sorry for the late reply...I have never heard the Agathon,but believe it is just the bass responce...as all the drivers are the same...that said ,I can tell you that I have heard many speakers and this one is by far the most natural and deepest I have heard...if your room is not the largest,the Agathon will most likely do the job...Excellent,coherent and musical speaker...even with CD ...
Regards
Helmut