Yes, I think you can find something better suited to the Buchardts. I’d be curious about the Nuforce STA200, but you would need a preamp, possibly tubed. The Nuforce and a Schiit Freya would come in under a thousand dollars. Just a thought.
I don’t understand why they crossover a 19mm tweeter at 2000hz. That is just too low for any 19mm tweet I know of. Every other makers have abandoned those small diameter tweeters. The latest design ring domes disperse just as well.