To give you a clear image/adjustment of your bass quality
A nice ensemble for fine tuning the crossover from a subwoofer and for getting as close to studio quality bass as possible.
the point is just to run this briefly any time you want to really audition some tracks to see how the base originally was mastered.
anyone unsure of the exact details of their speakers should try this to know the exact frequencies at which they operate.
the main thing to keep in mind is that the volume has to stay flat and the sound should be the same at all frequencies.
Watch out for dips in the crossover range and peeks at the low-end due to reflections.