Disclaimer: As part of the Cayin N6II and YB04 tour I was lent these IEMs to try in exchange for an honest review. I am in no way associated with Cayin. The YB04 is Cayin's first IEM and is positioned as a mid-priced multi BA over ear unit with a premium metal build and engaging, powerful, natural sound. The market <£1000 is pretty crowded, especially with all the new gems coming from China so lets see how the YB04 performs (in my honest opinion of course)... The YB-04 specification is as follows; Driver units: 4 balanced armature drivers...

This review of the Cayin N6ii is part of the world tour and I was given the chance to audition this player in return for an honest review. I am in no way connected with Cayin. Lets get right into it... Specification Android OS (stripped down customized version of 8.1 Oreo) Bluetooth aptX, LDAC , AAC, SRC User replaceable motherboard 3.5mm Line Out, 3.5mm SE, 4.4mm Pentacon Balanced outputs (T01 motherboard) I2S, USB & S/PDIF digital interfaces 64GB onboard ROM, single MicroSD card slot (up to 512GB) Snapdragon CPU, 4GB RAM 5,900mAh battery...