Tip: When using the speaker wire with exposed tips, unscrew the terminal and insert the exposed tips into the terminal, then screw in the terminal firmly. Verify that the speaker wire is firmly secured by making sure that it does not pull out of the banana jack.
Banana plug
Notes:
Make sure the exposed tips of the speaker wires do not touch each other, and that they are fully inserted into the terminals.
Make sure you connect your amplifier using the speaker output terminals.
Make sure that the amplifier volume is not set to zero, otherwise no sound will be transmitted.