Cayin N6ii Replaceable Audio Motherboard E01
E01 – single ES9038 Pro DAC (more advance, bigger size DAC), 3.5mm single ended headphone output only, lower power, and Class A and AB discrete switchable amplifier.
E02 – dual ES9038EQ mobile DAC (two smaller, mobile size DACs), 4.4mm balanced headphone output and Line out, higher power, and Class AB discrete amplifier.
It is very nice to own this audio motherboard E01 which sounds much better to my ears compared to the A01 and T01. It is still in burn-in time but it is better every day with huge soundstage, punchy bass and more timber layers in all spectrum.