Favs: Bang & Olufsen Beoplay H6; Bowers & Wilkins P7; Mee Audio Pinacle P1; Sennheiser IE40 Pro; Final Heaven VI; Final Heaven IV; Final E4000; E3000c; E2000c; E2000cs; Soundmagic E80s; E50c; Fiio F5. A grade: Geek Wold GK10; Fiio FH1s; Final E1000c; Pioneer SE-CH3t; Direm E3; Sennheiser Momentum M2 IEG; Beyerdynamic Soul Byrd; Astrotec Vesna. B grade: Sony MH1c; Tanchjim Tanya; KBear Little Q; Whizzer BS1; Tiandirenhe TD08; Openheart Resin; C grade: MoonDrop Quarks; Sony MH750; Samsung EO-IA500; D grade: Marshall Mode EQ; Sony MDR-EX15AP. E grade: Sen'F'er DT-6; Magaosi BK50 Pro; Einsear T2; Swing IE800 DIY; Boarseman KR49; JBL T120A; Xiaomi Hybrid Mi Pro HD; Xiaomi Hybrid Dual drivers Mi IV.
Sold: Sennheiser HD 4.30G; Tinhifi T3 Plus; Dunu Titan 1; 1more E1001 Triple driver; UrbanFun Hybrid; KZ ZS5 (1-st rev); Sennheiser CH 5.00G; Rock Zircon; DZAT DF-10; UiiSii HM7; Xiaomi Piston 3 Youth edition.
Gear: LG G8x; LG G7+; Shanling M0; Walnut V2S DIY