You need,more power. Owned the rb-1090 until that sad day I pressed the power button, and a white/blue flash and some smoke arose, I was so sad, angry, finally found an amp with,major huevos, and the inrush limiter failed less than a year in,….
that,amp was a beast, powerful, bass was deep, tint, crunchy,midrange, etc etc
if the amp is tripping the overheat sensor, you need a bigger amp, more power.
sell some stuff and get the Sanders Magtech, all the power you will ever need.
or a used Sunfire stereo amp.