Gustardx26 pro vs RME ADI2FS

Also DIY audio's desription of the F6:

"The transformer greatly contributes to the overall sonic character of the amp which is very highly regarded and considered to be similar and having all the benefits and positive characteristics of a tube amp... making some observers speculate that much of the positive 'tube amp' sound is the transformers, not the tubes"

https://diyaudiostore.com/products/f6-board-transformer-kit

I came across this article on the net and remembered that Nelson Pass said the same thing once about the sound effect of transformers used, rather than the actual tubes.

http://www.hawestv.com/amp_projects/amp_solid_tube/tube_sound1.htm

This site also mentions that transformers impart warmth or a mid range boost(sounds almost like an EL34 description).

"Audio transformer effects:"

"Audio transformer sound may be the most important component of so-called “tube sound.” The transformer launches a midrange boost, slight ringing, and even harmonics."

I then realized that all of the equipment that Ive liked and kept had a transformer.

In my case, the RME DAC makes the violins in an orchestra sound monotone and from a much smaller soundstage. Im wondering if it is because it lacks a toroidal transformer or linear power supply.

Pass F6 is SS, not tube.

Pauly, can you post a link to a(or your) audiophile battery, maybe one for sale? Let us know if disconnecting the battery with the stock PS made a difference. I'm thinking it would.

BTW, the manual for the RME is a great read. Does not feel at all like Google translated German and it is sort of written in the first person on R&D issues. 

Thanks for everyone's input. 

Was also wondering with all the functions the RME has, many of which I am getting lost in with the tree they use. Maybe a language barrier as well:  the "phones" section-  what!? A bit frustrating and not especially user friendly a la programming the VCR back in the day. 

I know the RME has a great clock. Do reviewers or QC ever verify that a song is being played at the correct speed and tempo? Is there a DAC out there that has this adjustment that can slow down or speed up a song? - kind of like the turntable speed dial. Just curious.