By-pass fuse and add a circuit breaker

Hi,
I own a pair of ML 33H (230V model).
They use 2x 20A fuses each in the mains section.

I am wondering if it be safe to by-pass the fuses with a copper bar and then add a circuit breaker of 20A on the mains line of each amplifiers?

Will I get the same level of safety and protection against fire and damage to the unit, should the worse occur?

And, will I get some sonic benefit?

thanks