Haha, he wants to talk to you on skype to ask and solve his problem...Where does Skype fit into this? I'm confused?
The maximum power that can be delivered to an 8Ω speaker with a 50% duty-cycle square wave and a 15V supply is 14W. So unless the speaker is rated for less than 15W you shouldn't need any current limiter.You need to in series a small resistor to limit the current of speaker, otherwise you don't know what time the power will damaged the speaker.
You are right, but that is talking about the correct working situation, if the input stay at a high voltage then it could make the bad things happen and that you don't like it, so that's what I like to avoid something.The maximum power that can be delivered to an 8Ω speaker with a 50% duty-cycle square wave and a 15V supply is 14W. So unless the speaker is rated for less than 15W you shouldn't need any current limiter.
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