What Is a Preamp, and Do I Really Need One?

If you’ve wondered what a preamplifier is, what it exactly does, and whether your audio setup is missing one, we’ve got the ...
Morning Overview on MSN

Can you actually tell expensive HDMI cables from cheap ones?

Walk into any electronics store and the HDMI wall can feel like a trap. Identical-looking cables range from a few dollars to eye-watering prices, all promising sharper 4K, richer color, or “future ...