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It was 70celsius, i fixed , was problem with ir2110(killed ic and fets couse found that input wire crossed output wires), now its alive, +/-49v same irf540z. On 4ohms ferrite core heat up to ~50celsius, mosfets maybe 40celsius (after 2-3min play music max volume) without any heatsink :) Will try...

Hi, im new here and it's my first class D :) Im already etched thienchay IRS900D ,almost done soldering , but still have some question who already did this amplifier. I will use with +/-45v (later maybe up to +/-60v). I have irf540z and irf640 mosfets, t106-2 cores. I will use mur120 near...