If you don't do vinyl then you do not need a preamp. I have the Capitole and I use the toslink for my Satillite and coax for my DVD player and the Capitole has a way of telling me which of my CDs are well produced and mixed.
The latest Audio Aero has an analog bypass for your tuner and, since this does not use the up sampling circuit in the AA, you might want to use your tuner's enhancements to 'up the bass', etc.
The Audio Aero is really good at embracing the original mixer's intent and you really do not need a pre as the pre will only defeat the AA's ability to give you what was originally intended in the CD.
So, do you need a pre for your CDs? No. Not for Satellite or for anything other than vinyl. Let the Audio Aero do what it does so well.