you're welcome + thanks for sharing your setup! pretty cool design with the opposite firing drivers, but some vibration/resonance is to be expected in the case i reckon, no?
all i know is that theoretically, at least, it's NOT a good idea to vibrate a piezoelectric crystal oscillator when it's trying to perform it's function as a clock in your system!
(ESPECIALLY the DAC) also the setup looks cooler with the electronics on the shelf, slightly asymmetrical!
just from the pics - looks like you're using isoacoustics stands throughout? i'm curious why you got them? and what you noticed once you implemented into your setup?
(also did you notice a difference, sonically when you moved the electronics off the sub??)