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Higher power is (broadly) better for speakers.
It's clipping that damages speakers, when the amp runs out of current. Less likely to happen with higher power amps.
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Bear in mind that PA amps use fans for cooling so will not be totally silent in operation, as a hifi amp would.
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99db/w/m is very high sensitivity.
99db is loud
Remember that an increase in 10w is a doubling of loudness.
You could drive them to uncomfortable levels with a handful of watts.
Consumer amp ratings are mostly about marketing and dick waving.
ChasnotRobert
danb
@Stevethecoffee
What are the dangers with running amps of a higher power rating than your speakers? Giving some consideration to buying a pair of Crown XLS 1002 power amps, the YouTube hype kit of the moment, bridged as monoblocks to run those Klipsch Heresys, plus a subwoofer if there’s any money left when work returns to normal.
All reports say that those speakers work well with minimal power due to their 99dB sensitivity but I have 50wpc driving them and I feel like they have a lot left to give with more oomph. I’m turning it up beyond 12 o’clock regularly and the sound improves a lot.
So will I kill them or will it be so unbearably loud before danger sets in that I’m unlikely to get there?