Source: HM901s(Bal, iem, Musical amps),HM901,HM602, HM601, Ipod Classic x.xg, Iphone xg IEMs: Campfire Audio Vega, AK T8IE MKii,SE846, ie800, W4R, RE272, RE262, RE-0, EX1000, XBA40, XBA30 and Headphones: Sennheiser HD650, MX980, PK1, Sony MDRED12LP,PX200,HD202 Amp: Ibasso T3D, Arrow 4G, JDS Lab C5