How to connect the terminal stereo system to the computer

The terminals on the speaker are connected to the power amplifier through the speaker cable.

Cannot connect directly to the sound card output port of the computer.

Because there is no power amplifier on the sound card.

This is not a question of whether to change the wiring.

The correct connection is: buy a 3.5 mm plug at one end (ordinary small earphone plug, connected to the sound card output) and buy RCA at the other end.

Connect the power amplifier with an L/R audio plug (similar to a composite video cable), and then correctly connect the power amplifier and the speaker with a speaker cable from the speaker output end of the power amplifier! !