The Fiio E11 has a bass boost feature. you can always use it when necessary.
same goes for a cMoy amp.
I wouldn't recommend the DT770, because it's V-shaped, and so- it's less of an all-rounder than the DT880.
I also wouldn't recommend the 32ohm version of the 880's...
The DT880 250R can be rough on the ears
so usually, sensitive people (as I) just match it with a Tube-Amp... but not in the 100$ budget.
The HD598 though, is considered one of the best cans, when going without an amp.
same goes for Philips Fidelio X1.
Edited by eyal1983 - 8/7/14 at 12:58am