Audio Alchemy DMP-1

[Dpod4]

I have a Berkeley Reference DAC (being upgraded to series 2) along with Alpha USB. Fed into ARC Ref 6 to Luxman M800A monos driving Magnepan 20.7 and TAD CR1. Looking for a digital server to help my digital compete with my Spiral Groove SG1.2 + Goldfinger. Was going to purchase Aurender or Auralic but am open to AA dmp1 (still have the original AA digital preamp from 1990s). However it is unclear when/how to secure a dmp1. Pls advise.