Hi Apopira2,
Not quite understanding the question, do you mean piggyback or using them for different components in the same set-up?
I personally use the APS 1050 for my source,pre,and PARC and the amp is connected to an Audience aR1p with very good results. Quite backgrounds,smooth detailed sound without losing dynamics.
Only negative is the APS has a fan which makes a little noise. If you sit close enough you might hear it, not a problem IMS.