So, I work with electronics, and I also am very familiar with guitar amplifiers. Is the headphone amp just a separate, higher-quality power amp stage? If it's not, what is it? Do I need one, and if so, why? Is it more beneficial for very expensive headphones or will I notice a change with my V-Moda Faze headphones? I am planning on buying a set of soundMAGIC PL-50's soon, would I need a headphone amp with that?
My current player is a Sansa Fuze.
FWIW I'm planning on making my own. The Mini Cubed looks like a fun, easy project