To solder the wires, touch for a moment with the rod of a simple pencil to solder.

Solder the wires of your new speaker into the same joints.

Before soldering the wires, their ends should be twisted together.

The pressure-welding portions are simultaneously pressed to weld the wires, and are simultaneously fitted into the fitting holes of the housing.

On the printed circuit board, multiple lands are provided for soldering the lead wires while round holes are provided between the multiple lands.

By increasing the arc discharge time, you can weld the copper wires without solder.

Soldering is quite a painstaking and delicate process, and beginners often have a question about how to solder the wires correctly.

This made no since to me, why not simply solder the wires directly to the board?

No need to use a crimp pliers here, just solder the wires to the metal pins and insert them into the plastic.

If you need to solder the wires, then from their ends at first the insulation is removed at a distance of about 20-30 mm.