Do Speaker Selectors Degrade Sound?

I know there are a lot of inexpensive (and some expensive) speaker selectors on Amazon, however, these are designed to play multiple pairs of speakers at the same time and will degrade the sound.

What is a speaker selector used for?

The main reason speaker selectors are used is to distribute sound to multiple speakers while protecting the amplifier from too much load (due to too many speakers). Please note, speaker selector switches are designed for multi-room installs in a home or small low power installs (like an office or cafe).

Do speakers affect sound quality?

Every speaker produces certain frequencies that are louder or softer than others. Assuming that your ultimate goal is accurate audio reproduction, the less variation in loudness between frequencies—in other words, the flatter the frequency response chart is—the better the speaker quality.