LED RGB Matrix: good power supply?

Hello folks,

I’m building some wall art using a Pi 3, the Adafruit RGB Matrix HAT and 4 32x32 RGB LED Matrix.
I need a quality 5V 20A power supply, since the last 2 “aliexpress special” I bought emit an ear-piercing high-pitch noise, especially when the matrix is displaying a lot of white pixel (meaning that it’s pulling a lot of amps).

Would anyone have a link to buy such a power supply ? (or a way to silence the one I already have).