Hope you're aware Klipschorn can run on as little as a couple watts, 300w of 7300 is complete overkill. I'd never like Klipschorns with high powered solid state amp, but then I'm sensitive to things like timbre, tonality. I run my highly modded Klipschorns with SET and push pull tube amps, much more sympathetic partnering imo.
I don't consider Klipshcorns to be head banger speaker, really need subs for that kind of bass. Yes, they'll get plenty loud, but might run you right out of room, in stock form they can get shouty at loud volumes. They also need proper corner placement with extreme care in getting speakers to seal with wall for maximum bass output, they also want a larger room for optimum sound quality. While I love my Klipshcorns, I'd not recommend these for what I presume you're looking for.