A few days ago, I had sold my hipdac v1. And maybe now I'm looking for a replacement for hipdac v1, is there any suggestion? Since I am a basshead, the port 4.4mm and extra bass feature is very useful for me. Thanks

Hi. I want to buy an amp to increase bass in my Sony XB950BT headphone. And I don't know witch is better between E17k and A5. I use iPhone for listening and the only goal of buying amp for me is bass boosting. Please help