Sources: Astell & Kern CA1000T, Lotoo GT2, Sony NW-WM1ZM2 + NW-WM1A + ZX707 + ZX300, Aune M1p, Hiby R3 II, Cayin RU6, DITA Navigator, iFi Go Bar Kensei, FIIO BTR17 IEMs: Nostalgia Audio Camelot, Softears Turii Ti + Enigma + Volume S, UM Mest Jet Black, Sony IER-M9 + XBA-N3, DITA Project M + MECHA, Shanling MG800, Penon Voltage, Sennheiser IE900, DUNU DK3001BD + Kima 2, Technics EAH-TZ700, QDC Fitear Superior EX, FIIO FH19 + FA19, Final A6000 + A5000 + E5000, BGVP Phantom SE, Victor FW10000 + FW1500, Hifiman Svanar, NiceHCK Himalaya + NX8, AFUL P5+2, Kiwi Ears KE4 + Orchestra Lite, Simgot EA1000, and a few others... Buds: FranQL Nexus, Audio-Technica CM2000TI, NiceHCK EBX25Ti, TGXears Serratus + Tofino, Penon BS1 Official, LBBS, Yincrow X6, Newbsound 32pro, VE Monk Headphones: Austrian Audio Composer, Denon D9200, Sennheiser HD650 + HD660S2, Sony MDR-1AM2, Audio-Technica WP900, JVC SW01 Desktop: Topping A70 Pro, Eversolo DMP-A6, Audiolab 9000A + 9000CDT, Technics 1210MKII (x2!)