No EQ.
IEMs: 7hz: Dioko, Legato, Zero, Zero 2. BQEYZ: Spring 2, Wind. Campfire Audio: Holocene, Mammoth. CCA: C10, CRA, CRA+, FLA, HM20, Lyra, Pianist, Polaris, Rhapsody, Trio, Hydro. Dunu: SA6 mk2, DaVinci. KZ: AS16 Pro, BA10, Castor Bass, Castor Pro Harman, D-fi, EDC PRO, EDX PRO, EDX PRO X, EDX Lite, ESX, Krila, PR1 Pro, PR2 v1, PR3, RPX, Saga Balanced, Saga Bass, ZAX, ZAT, ZES, ZS4, ZS5 v1, ZS5 v2, ZS6, ZS7, ZS10, ZS10 Pro X, ZS10 pro, ZS10 pro 2, ZS12 Pro X, ZVX. Kiwi Ears: Cadenza, Quintet. Moondrop Chu, Kato, Variations, May. Thieaudio Legacy 2, Hype 2. Truthear Gate, Hexa, Hola, Nova, Zero, Zero Red. Other brands: Aurian Ocean, Blon Z300, CVJ Konoka, FiiO JH3, QKZ HBB, Tanchjim Ola Bass,Tangzu Wan Er, Tinhifi t3+, Tripowin Mele, TRN V80, Penon Fan 2, Celest Plutus Beast, Hidizs MP145, Simgot EA500LM, Letshuoer Cadenza 4, Unique Melody Mest mk II, Fatfreq Deuce. Earbuds: NiceHCK eb2s pro.
Bluetooth: Huawei Freebuds 5i, Samsung Galaxy Buds2 Pro, Moondrop Space Travel, Simgot FLD100, Xiaomi Redmi Buds 6 Active, 1More Sonoflow, Philips SHB3175, KZ AZ09 Pro, TRN bt20xs.
Headphones: Sony MDR1A, Philips SHP9500, Philips SHG8050/00, HiFiMan HE400SE, Fiio FT1. AMPs/DAPs: Truthear Shio, Fiio K3, Hidizs AP80 Pro X, Sony NWZ A17, Hiby M300. Speakers: Edifier MR4