ok i no this might have been asked a lot of times but i couldnt see it.....
if you hook up a smd/3mm/5mm led strait to the speaker (No sound amp) would you need a resistor??
appreciate it!!
Ok, i know that you got an answer on this, but the truth is, it depends on the LED. if you are using blue or even green you should be fine, but you may want to do the math. Find out how much volts the thing needs to operate, and use the OHM's law.