01-29-2011, 05:30 PM
If you are playing the ultrasonics and hearing the buzzing sound you may not have the right frequency of speakers. Your speakers must have a minimum of a 20kHz frequency response. Some people were hearing artifacts and slight buzzing noises and this is most likely because of that fact but sometimes people had the correct speakers. Your speakers may be partially blown but the subs are still working to some degree. Your best bet is to get some new speakers.
