This 30-second tweak means I never have to listen to flat audio on headphones and speakers again

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ZDNET's key takeaways

• Equalizers let you fine-tune specific frequencies to balance sound.
• They help fix issues with your speakers or room acoustics.
• You can easily boost clear tones while cutting out noise.

I remember it like it was yesterday: sitting in my car, cranking up Van Halen's 5150, and spending the entire album fiddling with the 10-band EQ I'd installed to get the best sound possible.

You don't see a lot of physical equalizers these days, which is sad because they were always so cool to have. Instead, most everything is software-driven now. And that's fine. It may not be "audiophile-level fine," but at least it's something.

Also: This Bluetooth speaker I tested delivers room-filling sound without breaking the bank

For those who ...