Most electrical equipment is very safe.
Typical stereo electronics will (probably) not kill you if somehow a short develops to ground.
Also very large amplifiers capacitor banks can pose a hazard if you are sticking your fingers in there.
The real exception is tubed electronics, and Color tube TVs.
Both carry fatal voltages inside, and should be treated with respect.
And no one does not have to be worried about items with only a two prong plug.
Typical stereo electronics will (probably) not kill you if somehow a short develops to ground.
Also very large amplifiers capacitor banks can pose a hazard if you are sticking your fingers in there.
The real exception is tubed electronics, and Color tube TVs.
Both carry fatal voltages inside, and should be treated with respect.
And no one does not have to be worried about items with only a two prong plug.

