The company’s preamplifier is a good starting point.
https://adcom.com/product/gfp-915se/
if it was me I’d try the 💩 just to see what all the hype is about tubes.
https://www.schiit.com/products/freya-f
as it was for me getting rid of the Marantz avr and getting a proper preamplifier was a good thing. Hopefully the same thing will happen for you.

