Current Conveyor Technology can much less effect by the transmit
cable and sockets, the signal can exact transmit to the DAC so the
sound quality have more warranty .
DI-U8 had both BNC
and RCA coaxial outputs can connect to two DACs at same time.
The DI-U8 had built in ultra high performance power supplied,
include 5 groups class A PSUs , the class A PSUs had ultra high
input impedance and low output impedance can block the disturb
through power supplies effect the sound quality.
The DI-U8 had applied 3 groups PSUs supply the Xmos U8 chip ,
separate power supply for the core , I/O , PLL and clock . These
processes made the performance and sound quality had much improved .
Especial the clock and PLL power supplies, applied the
negative-feedback power supply ( PSU chips or some Linear PSUs) or
power supply common with other circuits will make the phase noise
increase to large level and much degrade on sound quality . Our all
class A PSUs are non-feedback design .
In the DI-U8, the SPDIF input controller chip had separate class A
power supply . The Power supply is the source of anythings in audio
What's benefit of the coaxial / Optical inputs:
/ optical inputs can improve on SQ
from some low/mid rang coaxial output source. Like some DVD player, PC
sound card, low/mid rang CDP like the Marantz CD67, ect. If the coaxial
output source already Hi-end quality, don't expect the DI-U8
can improve on SQ.