Hi Tjassoc,
Depending on the Sound Application model you have and in reference to the where the power cord plugs into the unit:
For the Digital side:
- digital source closest to the power cord
- and then remaining digital items after that
For Analog side:
- pre amp first or closest to power cord
- then remaining analog components
I suggest you plug your amp direct to the wall.
Hope it helps.
Teck5