Bass Tester Pro
You can download Bass Tester Pro 2.0 for Mac from our software library for free. Our built-in antivirus scanned this Mac download and rated it as virus free. The software is included in Lifestyle Tools. This free software for Mac OS X was originally created by Academ Media Labs, LLC.
From the developer:
Bass Tester Pro helps you check the loudness or sound waves pressure of your subwoofer, stereo system, and speakers. You can choose 1 of 4 buttons with different low frequency rate. It is possible to regulate the frequency using the slider. You just need to click on the membrane to test the sounding quality.
You may want to check out more software for Mac, such as RiffMaster Pro, WASEL Pro or Sequel Pro, which might be related to Bass Tester Pro.