@cundare2 Here is another suggestion for your Harbeth. I have heard Harbeth with the very best Luxman gear and liked it, but I knew I would not like it long term. It was too lush. Lots of people like that type of sound and the KRELL K-300i integrated sounds as good as that very expensive Luxman stack I demoed.
I owned the K-300i and it can be bought used for around $6000. The DAC is very good, you can do better with an external DAC. The RJ45 streaming was great (not as good as fibre optic) but great for RJ45. The ROON READY was a delight, especially the volume control from my iPhone (it is done as analog on the integrated).
The KRELL is sonically the opposite of the Benchmark stack. The KRELL weighs 52 lbs. Read the Stereophile review of the Boulder 866 and see what they say about the KRELL in comparison. The KRELL is a great integrated. I liked it even more than the CODA CSiB I owned.
K-300i Integrated Stereo Amplifier Technical Specifications – Krell (krellhifi.com)
Not listed above but the first 90 watts are in Class A. It is the KRELL's cool running iBias Class A which sounds as good as my CODA #16 traditional Class A.