External HD Changing the quality of the sound?


Hi everyone! It's my first thread i start in this community and i'm willing to go far in the journey of Hi-Fi audio :)
So i was wondering, is it real that if you put your audio file in an external hd it lower the quality on the outline?
I still don't have dac to test it so i wanted to be sure before putting my library in it, since my external hd is a 2tb and the one i have in my imac is a 500gb and is full...
Also, is it true that the type of connection used for my hd is changing the quality (usb 2.0, usb 3.0, firewire800)?
I know how it could affect it, i just want to know if it is all true?
freb03

Showing 4 responses by freb03

and it's better to use a different type of connection for my audio source than a dac or so it will take the power from it, isn't it right?
i have the G-Drive 2tb with firewire800 :)
I use itunes to manage my library (yes i know the bads about it, but i have too many music and the way it's displayed for me is easy to manage how to play my music)
So how can i set it to the memory cache? O_o