Speaker/Grill Rattle Test (50 Hz to 8 kHz Swept Sine)

A portion of the tape can be used to diagnose speaker and grille rattles. The first test is two tones played back-to-back. The second test is a variable frequency tone, but the frequency change is at a much slower rate. Both of the tests can be used to repair a speaker rattle or buzz. When the concern has been isolated the fade and the balance controls can be set to the proper location. The test tones can be then be played in a specific area.