Noticeable Sound Quality Improvement We usually use our phone or computer as the music player and output. the signal to the DAC & Amplifier via USB data cable. If the voltage islow and the current is small, will the role...

Noticeable Sound Quality Improvement We usually use our iphone or ipad as the music player and output. the signal to the DAC & Amplifier via USB data cable. If the voltage islow and the current is small, will the role...