Raven Audio/nighthawk or Osprey

I recently purchased a Microzolt MZ2 as a pre-amp and had a Schiit Vidar amp connected. After a few hrs. The Vidar started blinking, after trouble shooting the Vidar indicated it was High D/C offset. LTA took the MZ 2 back but said it wasnt their equipment and offered to refund me the money (which i did). Now im looking for another pre-amp but this time i may just go with an integrated amp/preamp.  Anyone have suggestions or have experience with Raven Audios Nighthawk or Osprey?