Audiolabyrinth, Thanks for the bit off topic question. simply put, Thermal breakers use heat to trip breakers, heat caused by the power running thru high resistance wire, so your power must run thru a high resistance wire… not good!, slows dynamic punch, robs detail, adds noise.
A magnetic/hydraulic breaker uses a surge in magnetic field to throw the breaker. NO HIGH RESISTANCE WIRE = Better sound. I've been using them for 30 years without issue.
One small problem (or two) There is no electrical code for mag breakers so they are not legal, and, they do not fit in a home electrical breaker box. I do my own house wiring and live without rules. The mag breakers are small and can fit inside the case of a thermal breaker. I haven't bought one in many years but they are maybe $20 each. the one I liked the sound best is from Carling Technologies
part # BA1-B0-22-630-121-C Enjoy!