Moode Audio VS Volumio VS Symphonic-Mpd J-test

A while ago, a few of audio forum friends mentioned about the Symphonic-Mpd from Japan , which is similar to Moode / Volumio but running a real time kernel and also software PLL jitter reduction. Most of them seems not really interested to try it out because they believe that it has no difference with Moode/ zvolumio. Here&a simple comparison test video. I also compared the sound quality and Symphonic-Mpd sounds much better, with darker background and huge soundstage. Measured peak for Moode and Volumio are around -85dB, and Symphonic-MPD around -103dB My setup : Raspberry Pi 3B+ DIY 24bit R2R discrete DAC hat. Non over sampling 6dB passive filter at 20KHz 3A switching power supply All Moode audio/ Volumio/ symphonic-Mpd settings are default setting. ** This video doesn&contain any audio track ** EWCG.