Hey guys,
I'm fiddling around with a couple of small amplifier circuits (like this), but am totally confused by speaker requirements.
I have a circuit which calls for an 8ohm 1W speaker, and another which calls for a 4ohm 5W speaker. Now I have the first speaker already, but for the second one I only have a 4ohm 3W lying around. I'm assuming the watts rating is the maximum the speaker can withstand, and so the 3w speaker will be no good? If I buy another speaker, does it matter how close the speaker rating is to the circuit output? Like if I find a 4ohm 20W speaker, will that be ok?
Sorry for the noob questions. I did a bunch of googling but just confused the hell out of myself!
EDIT: one of the circuits I was looking at uses a BA5406, which I happen to have on hand. It mentions that it should have a heatsink, which I don't have. Does anyone know what kind of heatsink I can use for these? (Again, google proved unhelpful).
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