Sorry. Let's start from the beginning.
1) I like the sound of the Aqua but experience listening fatigue when the Jay's, Aqua and rca ICs are all in the signal chain.
2) When the Jay's is directly feeding the Hegel's internal dac (no ICs required) the fatigue completely vanishes.
This result makes me wonder:
a) Is the fatigue due to the Aqua or the ICs?
b) Could utilizing the Hegel's internal clock 1) eliminate the jitter while 2) allowing me to still enjoy the fuller tonality of the Aqua dac?
My aim is to determine the source of fatigue and eliminate or otherwise defeat it.