Congrats on your new build! Let us know your thoughts after it has settled into your system. Lots of helpful info in your posts.
TU-8600S
Phew. I bought the last one!
I built the 8600R and use it in my small system sourced from a BluOs Node and driving a pair of Harbeth P3ESRs. Rather nice sound.
I had tried the 8600R in my big rig between the K-01xs and the Atria IIs (?Reference System - ugh) and though it excellent. I was surfing around and saw that there was a TU-8600S with the Lundahl OPTs for sale - I was drinking a glass of Patricia Green Cellars Pinot Noir - which may have something to do with the spur of the moment purchase - so I went into my office and ordered it. The kit should arrive later today.
It will be a few days before I can start building it as my wife is in the final stages of her MoMA holiday card submission for 2026 and I do all of her Adobe Illustrator work.
Any thoughts on upgraded caps, the Mundorfs or Jupiter beeswax seem to get good reviews but possible a bit of extra top end from the Mundorfs (and with my tinnitus I do NOT need that)?