Originally Posted by AnakChan
Believe it or not, it is somehow possible. It depends on the interface between the transport & the DAC source.
I'm on my iPhone Tapatalk now but if you guys search for Shigzeo's review of the early Go-DAP 4.0 with firmware 1.04, you'll notice he did measurements of (something, can't remember what now) vs the CLAS as transports out to external DAC.
The very same iDevice, depending on whether it's using the Go-DAP or CLAS, outputting to an external DAC/Amp sounded quite different. The Go-DAP sounded quite dull. VentureCraft issued a firmware update v2.0 to improve the situation & did a commendable job but still couldn't match the CLAS.
Thank you for your help Anakchan
I do not know to much theory , but in that practice I compared them ,
As transport the SQ from AK 100 better than dx 100 and iPhone 4S.
I guess , could be the stereo crosstalk from AK 100 is the highest about 120
Compare to my iPhone 4 S about 90.
I heard from AK 100 more detail and has better soundstage and very clean SQ
Minus : only direct AK 100 has not enough power for all rounder.
It is very good for iem and sensitive headphone .