The Fascinating Fact You Never Knew About Speakers [Quick Read]

Stack of speakers

Speakers are something that we interact with every single day without ever really taking a moment to think about. Whether it’s a podcast on the drive to work (check out ours here), announcements on the subway PA, or some music after a long day, it’s incredibly likely that you hear something from a speaker at least once a day.

This is why it’s so shocking to find out that a speaker can actually act as a… microphone? Yes, it’s true. 

Due to the foundational hardware — and the way that hardware is connected — within the speaker, it essentially functions not so much as a separate entity from the input source, but a “reverse-microphone”. This means that with some slight adjustments, signal flow can be reversed, and a speaker can in fact be used as a dual-input microphone.

If you’re curious to learn more, check out this great video from Adam McGrath, where he turns a speaker into a functioning microphone and takes you through step-by-step.

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