I got the beyerdynamics 880 pros with an antlion modmic 5. I am considering using these for moderate gaming and music. I usually dont listen at high volumes and I am going to just plug in and listen (phone and desktop). I dont have much experience with open backs as this is my 1st pair of them. Would I need a amp to meet these requirments? (On my desktop I usually go on about 20's max and about midway as max for my headphones.