Swap your speakers - or better, your speaker connections - and you're done. As you are testing your speakers, check their relative polarity: is very important too!

You can check your Headphones (Kopfhörer) or your speakers (Lautsprecher). This ist thought of being useful for 2.0 or 2.1. You can find other Sound Tests in my channel or my playlist.

You may quickly and effectively test your stereo (left and right speaker) with our web-based tool without leaving your current browser. This sound test is distinguished from others available online by the …

Test your device's stereo speakers instantly. Play left and right sound to check audio balance, troubleshoot issues, and ensure proper speaker setup—free and fast online.

A simple and free online web application for checking the audio channels of your audio equipment, speakers or headphones. A quick test to check the left and right audio channels (stereo test).

Quickly test your speakers or headphones with our online tool. Check left and right stereo channels and listen to a frequency sweep to ensure your audio is working correctly.

Test headphones & speakers stereo channels. Verify left/right audio balance, phase issues. Essential for new & used audio equipment testing.

Test left, right, stereo channels, and frequency response easily in your browser. Works for phones, computers, and headphones – no app needed. Ensure your speakers deliver optimal sound for …

Use our online speaker test to verify left/right channels, check frequency response with a sweep, listen to pink/white/brown noise, and run phase checks—all generated locally in your browser using the …

Sep 12, 2025 · With this test, you can easily check if you can hear stereo sound from your computer speaker. In other words, you can hear two different sound channels, one coming from the right …