I have an iPad which sounds pretty good when listening with my ER4S. I am curious if an amp would give the sound an increase in fidelity of some form.
Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › Does ER4S require and amp?
Does ER4S require and amp?
Head-Fi.org › Forums › Equipment Forums › Portable Headphones, Earphones and In-Ear Monitors › Does ER4S require and amp?









