Well that, I've had these iem for two years but they have been failing. So I want to change them. I love the sound of the jvc fx850 but they don't have good isolation so I want something better in this field(isolation), comfort and sound. I have always used with an ak 100. My budget is around $...

which is the best dap and amp for RE272 in ear? In the price range of $ 200   I have the sansa clip + at the moment, but I think it isn´t the best companion of these headphones and I read that they need a good amp to get its full potential. sorry for my english,