According to your statements, all components including speakers match each other and only option left to exercise is your personal hearing. For this you'll need to actually measure frequency response in your room http://http//www.raecorents.com/products/noise/3M-Quest-Edge-eg5/?_vsrefdom=ppcgoogle&ex=oerf7a-eep549-1ojahoy&gclid=CN71jfO4mMoCFU4WHwod-CICiw
Did you try any other amplification? Why did you decide on Esoteric? Was there ever enough bass in your system current or previous? What compares to what you've heard before? How old are your speakers and how many hours they've played so far?
Did you try any other amplification? Why did you decide on Esoteric? Was there ever enough bass in your system current or previous? What compares to what you've heard before? How old are your speakers and how many hours they've played so far?