I bought these headphones a while back because I wanted the best BT phones. Happy with them but I wanted better sound quality. You can hardwire them and they sound amazing. I want to know if I can amp these using the cable. I have a Fiio E7, but since it is bluetooth I don't know if they are made to handle a lot of power. I don't want to blow them.. Also, does anyone know how these would compare against another Sennheiser model that is hardwired?