If all else fails and you don't want to install any third-party software, modern versions of Windows (10 and 11) include a hidden but powerful built-in equalizer. You can access it by going to the Sound Control Panel, selecting your playback device (e.g., Speakers), clicking on "Properties," and then finding the "Enhancements" tab. From there, you can enable features like "Bass Boost," "Virtual Surround," and "Loudness Equalization." While not as feature-rich as SRS Audio Sandbox, it is a completely safe way to tweak your system's audio.
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