Years ago, people had to have MASSIVE speakers to hear bass. Tiny speakers used to sound terrible and high-pitched, but today, an iPhone speaker can play bass really well! What technology gets upgraded in a speaker, that improves its bass output without increasing the physical size? Ultra-thin smart TVs can even play sub-bass, and their speakers aren't very big. I thought that bass couldn't be produced if a speaker was too small. How does this work?
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How do tiny speakers play bass?