Placement

• Plug the subwoofer's cable into the back of your home theater system. Place the subwoofer on the floor. Subwoofers are not directional, so their location in reference to the audience is not important. Be sure not to place the subwoofer against anything that may rattle or otherwise cause unwanted noise, such as walls or cabinets. A corner is usually a good placement for the subwoofer.
  
  

Just Enough Boom

• Play a movie through your home theater that features a particularly loud soundtrack or action scene. Turn up the volume slightly louder than you would normally listen to it. Set the subwoofer volume so that it thumps aggressively during the parts of the soundtrack with the heaviest bass sounds. Turn the master volume down to your normal level. This will ensure you get enough bass response without overwhelming the rest of the audio.
  
  

Tweaking The Sound

• Adjust the subwoofer volume as required by the particular program. Bass response is not something that works unilaterally. Some shows are enhanced with a louder subwoofer, while others will sound noisy.