Originally Posted by
achilles
Not really, at least in my opinion. Kryptonians are not only invulnerable through and through, and they sundip. Given that the sound within the sun is vastly louder than anything possible on Earth, I doubt any Kryptonian would be in the least bit inconvenienced by it.
That said, I can recall one instance where it did work, on Power Girl in Gen Lost. That one had all sort of wrong associated
with it, (given that she can take the noise in the sun, why would she be effected by a much less intense sound generated by a Rocket Red). And it's been used on SM as well. Don't know about SG. Point is, given their other powers, it makes no sense.
Then again, neither red suns nor Kryptonite really make much sense either as weaknesses.