Hello, this is my first thread and hope you help me. The thing is that I have a pair of Sennheiser 280 pros, after over a year of owning them, they do not convince me. Bass sound is not as clear as other headphones i have tested and i have not noticed the difference between 320kbps mp3 and 16bit flac, while with others, i do. I currently use a fiio E6 portable amp.
I am seriously considering to upgrade to a Grado SR80i, have read a lot of good comments about these, except for the build quality, a Sennheiser HD 555 or 558/598. I am also considering uprading the amp to a hifiman EF2A, is this necesary? The main source of the music comes from my Windows PC Desktop, my macbook and my phone (FLAC only). I mostly listen to rock, indie rock, slow rock.
What should I do? I am kind of new in the audiophile world.