You are not a disappointing person at all. But your words "dark" probably means something different than what I might have thought. This thread asks for speakers for a "dark amplifier". Does it mean that the designer did not want a neutral sound and instead designed a "dark amplifier"? Strange.
In any case, I spent about 20 minutes with a Focal Electra bookshelves in 2016 and they had tons of top end. Might be that would be a choice to bring some light to your darkness. I think @arnoldo is indicating the same.
I am not sure I would want a dark sounding amplifier in my system. I generally like neutral. Please explain me "dark sounding". Any Youtube video link that might make me understand the difference? I know if would not be hifi sound from Youtube, but might give me a bit of an idea.