MID FREQUENCY SPEAKER TEST - DETECT PLACEMENT OF MIDRANGE AND TWEETER IN SELECTED FRONT CLUSTER: > When you start the test, press the meter against the center of each speaker grill. The meter should read as follows for selected FRONT CLUSTER: - For woofers: between 86 and 90 db - For midrange: between 92 and 96 db - For tweeters: between 85 and 88 db > If the speaker reads above or below its range, its wiring may be switched with another speaker in its cluster. - The midrange and tweeter may be switched: - midrange reads about 84 db; tweeter reads about 94 db.