ouput voltage

I'm talking about RCA/XLR line out/in. But from the beginning I have home theatre setup with adam t5v as LR, amp for the rest of the speakers and Asus Xonar u7 mk2 dac. At first there was issue where t5v's weren't getting loud enough at full volume on the DAC so i bought some cheap chinese...

I will set-up a mixed HC/HIFi 5.1 system based on a Preamp processor (either an Emotiva XMC-2 or an Anthem AVM 60) and a mix of class D amp from HYPEX (center, surround & zone 2) or Purifi (L,R). They will power Dali Rubicon LCR as front loudspeakers (Sensitivity 89bB). A Rel T9i will be used as...