I've been reading the forums for quite a long time, and just now I am making my first post.
My question should hopefully be simple. What am I listening for when trying to find the difference in quality between using a headphone amp and not using one?
The headphones I currently own are Denon AH-D600, Grado RS2, and Beats Studio Pros. I plug into a Calyx Coffee DAC/Amp(?) connected to Macbook Pro.
To be honest, I am not even sure if my Calyx Coffee is actually an AMP. But im having a hard time distinguishing any differences when plugged into the Calyx or connected directly to my iPod Classic (7g).
I just ordered a Fiio E11. Something inexpensive to let me test the differences to find out if my ears will benefit from upgrading my Calyx to something else.
Thanks a ton for dealing with my newbie questions!