I am an amateur and have been optimizing audio components for quite a while. Today while taking out excess led on the leads of the 4700uF 100V bank, the connection to the ground because loose. Did not notice it. When I switched on the amp, it crackled to scare the cat out of the room. I realised and corrected the mistake by soldering it securely. But I rather jumpy about switching it on again. Can the other components in the system be damaged by such an incident.