Professional audio equalizer with unlimited filters, low latency, and VST plugin support for Windows
↓ Download Equalizer APOEqualizer APO is an open-source graphical equalizer for Microsoft Windows. Equalizer APO was developed by Jonas Thedering and is freely available to download. Equalizer APO packs many awesome features, and it's exceptionally easy to use. Equalizer APO is very lightweight and uses very minimal system resources; thus, you do not need to worry about CPU usage at all. This website has no affiliation with the actual developer and the content of this website should be used only as a guide. Equalizers
Equalizer APO comes with many features such as unlimited filters, compatibility with multiple channels, fast response times, and a very easy to use interface that also supports VST plugin integration. This guide is made for beginners who want to improve Windows audio settings easily. Computers & Electronics
Add as many audio filters as you need without any restrictions.
Experience real-time audio processing with minimal delay.
Lightweight design ensures minimal system resource consumption.
Compatible with any number of audio channels.
📄 SoftwareIntegrate your favorite VST plugins seamlessly.
Easy-to-use graphical interface with modular design.
In this Equalizer APO installation guide, we're going to show you how to setup and install Equalizer APO on your computer. We'll be using pre-amplification settings that already comes with this software, which will be enough for most people.
⬇ Download Equalizer APO
First of all, you have to download Equalizer APO from this website or Sourceforge. Once you've downloaded the Equalizer APO file, you have to execute it and then the Equalizer APO installer will begin.
In the middle of the installation process, you will be asked to select the audio devices that the APO Equalizer is to be installed on. It's better to check your audio output devices first and select instead of selecting all devices.
Once you install Equalizer APO and reboot the computer, you can launch the Equalizer APO by navigating to your Program Files and looking for Equalizer APO inside the App folder. You can also launch Equalizer APO from the taskbar launch icons.
On this main screen, you will see three configuration tabs already there. You will need to remove them all in order to create a fresh new configuration tab.
So now, what I'll demonstrate is how to amplify your mic or speaker volume using Equalizer APO. I'm not going to talk much about the APO Equalizer interface because you can explore all of the settings by yourself and the sky is the limit.
On this main screen, you will see three configuration tabs already there. You will need to remove them all in order to create a fresh new configuration tab.
In here, you will create a new file. You can enter any name you want (for demonstration purposes, I'm going to name it Tutorial) and select the file that you just created.
Once we're back to this screen again, click on the up arrow icon and you will be navigated to a new tab.
In this step, we're going to add a device to Equalizer APO so we can amplify the sound output. Click on the green colored plus icon once again and then go to control and devices.
Then click on the small green colored plus mark, and you will get a drop-down menu. From there, go to Control and then Include and this will create a new tabbed item on your interface.
Once you're done with adding a device, stay on the same screen. Next, we're going to add the Amplification preset. Now, click on the plus icon again and go to basic filters. There, select the Preamplification filter and you will get a control as shown in the image. Now, you can use this to amplify your output sound for the selected device.
At the bottom of the screen, you can see the Analysis Panel. Now you've successfully amplified your output sound and all you have to do is go to File and Save.
Close the current tab and you will see the main screen again. On there, click on the power button icon to turn on the filter and now you're good to go. You can play some music to see if it works. If it doesn't work, delete every filter and follow the steps again while watching the video.
Even though using APO Equalizer is very easy, sometimes things might get a little bit difficult. In such cases, we advise you to watch the following video a few times in order to get more familiar with the installation process. If that doesn't help your issue, you can always contact us and we'll be glad to assist you with any issues, even though we are not the actual developers. However, if you're having trouble with the installation process, you can try again by downloading the setup. In extreme cases, you may have to reformat your computer and reinstall Windows with a program like Rufus or something else.
Follow the complete step-by-step video guide to install, configure, and optimize Equalizer APO on Windows.
Yes, Equalizer APO is completely free and open-source software. You can download and use it without paying any subscription fees.
Yes, Equalizer APO is fully compatible with Windows 11, Windows 10, Windows 8, and Windows 7.
Yes, Equalizer APO supports VST plugins, allowing you to extend its functionality with additional audio effects.
Make sure you selected the correct audio device during installation and restart your computer after setup.
Yes, Equalizer APO is considered safe when downloaded from trusted sources and the official project page.
Equalizer APO was originally developed by Jonas Thedering. This powerful open-source audio equalizer has helped millions of users improve their Windows audio experience with advanced filtering, low latency processing, and professional sound customization.
We would like to thank the original developer and the open-source community for maintaining and improving this amazing software. This website is an independent guide and is not officially affiliated with the Equalizer APO development team.