LOW FREQUENCY SPEAKER TEST -
DETECT PLACEMENT OF BASE AND MIDRANGE IN SELECTED BACK CLUSTER:
	
> When you start the tes, press the meter against the center of
  each speaker grill. 
  The meter should read as follows for selected BACK CLUSTER:

  - For woofers:  between 82 and 85 db
  - For midrange: about 76db 
  - For tweeters: about 77db

> If the speaker reads above or below its range, its wiring may be switched 
  with another speaker in its cluster.

  - If the woofer and midrange are switched:  
  - woofer reads about 70 db; midrange reads about 84 db.