Will Fidelio not need an EQ or an amp?

Any good EQ and amp that you know for HD-598?

Thanks to all for your comments. I get the idea that M50X has louder- not necessarily good-bass than HD-598, right? Also leaving the louder bass aside M50X will not be able to compete with HD-598 in other areas? If I get HD-598 and use an amp with it, will the bass response be as good or better...

Hi; I have HD-280 Pro that I use in home while for portability and out-door I use Momentum-On ear. I like the experience of open-stage sound of open-back headphones but also I like to have some deep bass. Is bass of HD-598 the same or better than ATH-M50X? I am more interested in bass response...