Since the exaU2I are a DIY product I have made an easy to change / modify setup and I have tweaked the exaU2I in several ways just to check if the already excellent performance of the standard product can be tweaked further.

The attached pictures are some days old and I have since then reconfigured and are evaluating other "upgrades".

The setup in the pictures have a Corian base and top and the 5 volt USB voltage are disconnected and the FPGA, clocks, GMR´s and LVDS are powered by LIFEPO4 battery.

The difference in fidelity between the standard exaU2I and the tweaked exaU2I (pictured) and the current tweaked exaU2I are not very big as the standard unit performs excellent.
For me every little improvement are of importance and my setup will be tweaked until there is no more to gain
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Mac OS X / Windows 7, USB -> I2S (352.8k/384k/32bit), JFET powered ES9018 DAC, JFET class A / T poweramps, AMT fullrange speakers

Originally posted by RayCtech on diyAudio.com