HardwareVideo Unboxing: Fiio E10 USB DAC Headphone Amplifier By Craighton Miller - Feb 11, 2014 0 2089 FacebookTwitterPinterestWhatsApp If you headphones are too quiet or you want another sound card option, there is no other options but this. The Fiio E10 provides the best cost effective way to add another sound card and not break the bank. Related Comments