How to Tell If Speakers are Out of Phase

If you have ever wondered whether your speakers are out of phase, there is an easy way to tell. All you need is a piece of string and a friend. First, make sure that both speakers are on and playing the same signal.

Then, take the string and tie one end to the positive terminal of one speaker. stretch the string across the room to the other speaker’s positive terminal and tie it off. Now hold the string at its midpoint between the two speakers and listen carefully.

If the sound is thin or tinny, then your speakers are out-of-phase.

  • Check if your speakers are in mono or stereo mode
  • If they are in mono, then they are most likely out of phase
  • If your speakers are in stereo mode, then flip the switch on one of the speakers to reverse the polarity
  • Play a song with strong bass and listen for any changes in sound quality
  • If the bass becomes weaker or more muddy, then your speakers are out of phase

Interference Demo: Out-of-Phase Speakers

Speaker Phase Test App

If you’re looking to test your speakers for phase, there’s no shortage of apps out there that can help you do just that. But which one should you choose? We’ve rounded up our favorite speaker phase test apps to help you make your decision.

1. Speaker Phase Test by Audioholics This app by Audioholics is designed specifically for testing speaker phase. It features a simple interface that makes it easy to get started, and it walk you through the process step-by-step so you can be sure that your speakers are in phase.

2. Sound Check by Studio Six Digital Sound Check is another great option for testing speaker phase. This app is designed for both professionals and home users, and it includes a number of features that make it easy to get accurate results.

For example, it allows you to set the distance between your speakers so that you can be sure they’re properly spaced for an accurate reading. 3. TrueRTA by true audio software TrueRTA is a more comprehensive audio analysis tool that includes a speaker phase checker among its many features.

If you’re looking for an all-in-one solution, this is the app for you. It’s perfect for those who want to get detailed information about their audio system’s performance.

How to Tell If Speakers are Out of Phase


What Does an Out of Phase Speakers Sound Like?

An out of phase speaker produces a sound that is lower in volume and tinny in quality. This is because the sound waves produced by the two speakers cancel each other out. The effect is most noticeable when the speakers are close together, such as on a desk or shelf.

How Can I Tell If My Speakers are in Phase?

If you’re not sure whether your speakers are in phase, there are a few simple tests you can do to check. First, clap your hands near one of the speakers and see if the other speaker produces a sound. If you don’t hear anything, try reversing the wires on one of the speakers.

If that doesn’t work, try moving one of the speakers closer to or further away from the other speaker. The goal is to get the two sounds to cancel each other out so that you don’t hear anything when you clap your hands. Another way to test is to play a recording with a lot of low-frequency content (bass-heavy music or a recording of someone speaking in a deep voice) and see if you can hear any difference in sound quality between the two speakers.

Finally, if you have an oscilloscope, you can measure the waveforms coming out of each speaker and compare them to see if they’re identical.

How Do I Know If My Stereo Speakers are Out of Phase?

If you’re wondering whether or not your stereo speakers are out of phase, there are a few things you can check for. First, see if the sound from each speaker is cancelling each other out when they’re both playing at the same time. If so, then they’re likely out of phase.

Another way to tell is by using a mono source of audio and playing it back through both speakers. If the sound is noticeably thinner coming out of both speakers than it would be if played through just one, then chances are they’re out of phase. Finally, you can also try flipping the polarity of one speaker’s wires and seeing if that makes a difference in the sound.

If it does, then your speakers are definitely out of phase with each other.

How Can You Tell If Speaker Polarity is Correct?

If you’re unsure whether your speaker polarity is correct, there are a few ways to test it. One way is to use a multimeter to measure the resistance between the positive and negative terminals of the speaker. If the reading is positive, then the polarity is correct.

Another way to test is to connect the speaker to an amplifier and play some music through it. If the sound is distorted or unclear, then the polarity is likely incorrect.


If you’re wondering how to tell if speakers are out of phase, there are a few things you can look for. First, if your speakers are out of phase, the sound will be thinner and less full. Second, if your speakers are out of phase, the stereo imaging will be poorer and the sound will seem to be coming from one side only.

Third, if your speakers are out of phase, you may hear strange effects like phasing and flanging. Finally, if your speakers are out of phase, the bass response will be weaker. If you notice any of these changes in your system’s sound, it’s likely that your speakers are out of phase.