I am looking to buying a new dac/amp that is versatile and can work with any headphones .I was looking at the THX AAA linear AMP on massdrop but I have not gotten any balanced cable as of right now. So I'm looking at the new labs atom. Is it powerful enough? The most it can push is 125mw @600ohms . I can't tell if that is good my bad .or should I get the THX amp and buy balanced cable .cause the only headphone I know that is 600 ohm is one of the beyerdynamics ones .