den#1 : SMSL M300 (Rohm BD34301EKV) -> Denon PMA-1600NE. den#2 : HM EF499 -> Drop THX AAA 789. sofa : A&K ACRO CA1000. work : Topping D30 Pro -> FX-Audio TUBE-03 (oracle ii) -> Cavalli Liquid Spark. dap : Acoustic Research AR-M2, Cowon Plenue 2, HM-603S (TDA1543), Sony NW-ZX707, Zishan DSDs AK4499. port amp : A&K PA10, GAD ADV, Korg HA-S (v5i), Little Bear B4-X (v6 vivid), Topping NX7, Walnut F2 (muses01). dong : Centrance DACport Slim, E1DA 9038D6K, L&P W4, Moonriver 2:Ti, Senn BTD 600. dac/amp : AT-PHA100, Dethonray SG1 Gold, HM1000 Himalaya, L1387 Portable, W510 (TDA1305T+TDA1308). tws : ATH-TWX9, Denon Perl Pro, JVC HA-FW1000T. iem : ATH-IEX1, BD Xelento, LZ A6, JVC HA-FWX1, Senn IE900, Shozy B2 Phantom / Black Hole Mini Steel, Sony IER-M9 / IER-Z1R, TRN BAX Pro. can : ATH-R70x, ATH-WP900, BD DT 880 (600), CAL!, Fostex T40RPmk3 / TH900mk2, HM HE6se v2, JVC HA-SZ2000, Koss KSC75 / KTXPro1 / Porta Pro, Monolith AMT, Senn HD 6XX, Ultrasone Signature X. bud : ATH-CM2000Ti, Fiio FF3, Ksearphone DB1 / LBBS, Moondrop Chaconne, Rose Maria, Sony MDR-E888SP.