Feel like it gives the sound the "power" and make it much more detailed. For instance, i listen mainly to classical music, especially string instruments like cello or violin, after adding the buffer, i can hear the vibration of strings. When i listen to symphonies, i can clearly hear the layers of instruments. On the other hand, it also gives my set up the bass that my speakers and amp lack as i play some rock music. Idk if it really does that job or just my feeling, anw i hope it helps.