This week (video), we have a request from someone working on a kit with an an audio output – they need to spec out an inexpensive speaker that will play the audio clips in their design and they had a few rough requirements they wanted to hit: the audio driving circuit they’re using is 8 ohms 0.25 Watt, so the speaker cant have have a lower power rating or it will blow out. The size is about 2 inches diameter, and it needs to be a round speaker to fit into the PCB. Finally, the audio frequency range is not that wide, we just need to play tones that are about 600 Hz.
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