Hi, amplifier's sound is a problem for my roommate so i want to buy headphones but i don't know what kind to buy. Will normal headphones with a converter piece be as good as headphones with jack input?
I have a set of AKG K44 and they sound good and are pretty inexpensive
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
What are you plugging them into? A line out is not the same as a headphone jack.
Sennheiser's are a solid choice and AKG aint to bad either.

Personally I think these will give you the most bang for your buck, they will sound great no matter what as long as you got the juice to drive them. (which isn't to much)
Often in ones madness resides genius. Thus for a mind seeped in madness, the imagination is limitless.
before you buy headphones make sure you amp has a headphone out
cause if you just plug into the output of the amp youll most likely fry your headphones and maybe damame your amp