JL Audio C3-570-XO, C3-570cw, C3-570-031010 owner manual See Diagram G

by objects in the interior of the car (including seated occupants). When selecting a mounting location, look at both sides of the car to make sure that this location is clear on both sides.

You can always experiment with tweeter placement before committing to a final mounting location. Simply connect the rest of the system and allow plenty of wire length for the tweeters. Using Velcro® or similar material, attach the tweeters in different locations until you find the one where they perform best.

Woofers will usually be placed into factory speaker locations. If you have some woofer mounting flexibility, keep the following in mind: Lower mounting locations, such as the lower front corner of a door (See Diagram H) or a kick-panel provide the greatest path length distances for the sound emitted by the woofer. For this reason, they are generally more desirable than higher mounting locations. Higher mounting locations often result in extreme near-side soundstage bias which compromises the stereo listening experience 

(See Diagram G).

Diagram G: COMPONENT CONFIGURATION - Less Desirable Door Speaker Placement

Diagram H: COMPONENT CONFIGURATION - More Desirable Door Speaker Placement

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