For $30, you can order the Boston Audio Society (BAS) Test CD-1. http://www.bostonaudiosociety.org/bas_cd.htm The BAS www.bostonaudiosociety.org is of interest in and of itself. The Test CD has both music and various speaker set-up tests, and frequency sweeps including the 80Hz-10Hz Sweep! Please note, you need to be VERY careful in using this CD as it can seriously damage vented subwoofers if you overdo it. I am not aware of anything else quite like it. Please remember, this CD needs to be used with great care so as not to damage your subwoofer. Don't come crying to me if you blow your sub Enjoy!