I have a question.
Calculate the resistance

Other people ....recommends a 2W or greater 1 ohm resistor....
So on to my question. After wiring everything for some reason I decided to revisit Olm's Law to triple check everything and this time my calculations came out different. Before wiring my LEDS to my sound board I want to make sure I have not goofed up.
Sometimes. What time does the man use .47 ohms?