This is almost undoubtedly [Harrison Bergeron](https://en.wikipedia.org/wiki/Harrison_Bergeron) by Kurt Vonnegut.

The father is smart, so he wears an ear-piece that makes loud noises at intervals to disrupt his train of thought; the son (Harrison Bergeron) is virtually a super-man, with headphones blasting static into his head, heavy weights to slow him down, prosthetics to make him ugly, etc.

One day he breaks into the ballet, removes his impediments and those of the principal ballerina; they dance beautifully together for a few minutes until they are killed on live TV.

If this is the story you are thinking of, the question is a duplicate of [this](https://scifi.stackexchange.com/questions/15911/looking-for-the-title-of-a-futuristic-book-about-enforced-equality) question.