A headphone jack should be connected directly to the GameCube audio out. If you put an amp in-between, you'll put on your earbuds, ready to enjoy some Mario Kart, and instead enjoy a bad case of eardrum obliteration.
A headphone jack should be connected directly to the GameCube audio out. If you put an amp in-between, you'll put on your earbuds, ready to enjoy some Mario Kart, and instead enjoy a bad case of eardrum obliteration.