Mr ODD BALL here 😉
I have done the solid state amp bit over the years and I am finally happy because I use a valve amp ( rich penny hush!! 😀 )
Have a look at Icon Audio
http://www.iconaudio.co.uk/
Not mere black box's but almost ornaments with a lubberly smooth easy sound.
Mind you I use a cd player with a valve ouput and Horn loud speakers