Chris Martens has a review on Hi-Fi+ of the outstanding Schiit Yggdrasil and Ragnorok DAC/Amp stack.  This is the high end of the Schiit line and they are outstanding.  I have spent several hours over the past year listening to them at various meets.  They aren’t cheap and the aren’t gimmicky.  They are simply excellent products and a good price.  One of the best price performing stack on the market.  Someday and might be able to purchase these but for now I revel in my Bitfrost/Valhalla stack.

Review of the Yggdrasil and Ragnarok