There was very loud pop intermintent through i think only right channel then nothing- quiet. i replaced amp module and now totally dead but left channel clear and normal. I notice i have only 1/2 ohm between main 50v filters and speaker output and when on i get 46v same at filters . 15v regulator and 1 small capacitor very hot but replace both and same hot. cannot find any short in circuit or component . Any help appreciated as where or what could be. Tim