Not perfect but dam good one thing way over looked is the digital cables
Tubulus audio Transformed my already good Innuos zen ,Hermes DDC then I2S to my Terminator 15 dac I bought the Concentus cable for the USB ,For the I2S the Ximius ,and Concentus for Ethernet the solid cord silver Air,tube dielectric I believe the best digital cables out there and I have tried Shunyata best, AQ best ,these were less money and at least a 10% improvement in overall fidelity Concentus power cords also. At a Audio get together one member has a whole system of Tubulus Audio cables ,fromHolland ,could not be happier .