Best practices when conducting a DAC comparison

The Denafrips Terminator was delivered early yesterday morning and went in system yesterday afternoon.

I’ve ordered the Gen 5 USB board from Schiit and will be doing the install myself.

I don’t understand. I thought the Schiit Gen 5 is an upgrade for any Bifrost, Gungnir, or Yggdrasil with the Gen 1, 2, or 3 USB inputs.

Your Denafrips Terminator (I assume this one http://www.denafrips.com/terminator.html at face value looks like a monster DAC and it should be at more than twice the cost of the Yggy. The website indicates it uses an Amanero USB Interface, which does appear to be of similar physical size to the Gen 5, but can you just swap the USB cards out?

@gdhal  I'm not sure I understand your question. Yes, the Gen 5 board upgrade applies to all three Schiit DACs you list.

My Yggdrasil is about 2 years old and has the Gen 3 board in it. I've been holding off on the upgrade until I had another DAC on hand.

@david_ten 

I initially thought, because of the way I interpreted your 11-07-2017 8:24am post, that you were wanting to install or use the Gen 5 board with or within your Denafrips Terminator. I also assumed (because you wrote that you have the "Schiit Yggdrasil (my current primary DAC)" that *is already* Gen 5, not knowing your current Schiit Yggy has the Gen 3. This is/was my misunderstanding. Thanks for the clarification. 

@david_ten 

So may I assume that it is your intention to compare **on a per input basis** the Schiit Yggdrasil to the Denafrips Terminator ?

What inputs will you be comparing?

Will you be posting your observation results herein?

I would also ensure all the components are broken in, especially the Terminator DAC.