Scartozi,
I've had a few rifles with brakes and they were all bad news in the noise department except for Magna Port.
I did some shooting with a Magna Ported 458 Win and never noticed the muzzel blast.
Maybe that's only because my hearing was already stuffed from years of shooting a (factory fitted) braked 30-06!

This one had a shark gill type brake and would make your ears ring for hours after just one shot.

Cartridges with velocities of around 2300 fps or less seem to be a bit easier on the ears than the higher velocities ones when using a brake.
That 30-06 is one of my favourite rifles so I "fixed" the muzzel brake by boring it out and fitting a sleeve to blank off the gas vents.