The cable of the IT01 contains a lot of OFC for its size. Due to this it requires a longer burn in process than normal to even out. The multilayered graphene diaphragm also requires time. Please give them time and you will be rewarded. And above all, Enjoy the music. The IT01 utilizes a single multilayered graphene driver per monitor. You get everything you need from a high quality OFC cable, ear tips, metal carrying case and great sound.