I agree with the advice given by tablejockey "you need excellent electricity" and douglas "the source lacks holography." By addressing the source (DAC) with first a power cable upgrade and 2nd and isolation transformer, I greatly improved the sound of the speakers.
If the AC quality going to your source and setup is great then look at changing out your source. If your AC is great and your source is all squared away, then maybe look at another amplifier.
If the AC quality going to your source and setup is great then look at changing out your source. If your AC is great and your source is all squared away, then maybe look at another amplifier.