Facing the Boot – Rear of the Car
This is the most common direction used by the majority of custom car audio fanatics. By placing the subwoofer in the trunk against the last row of seats, facing away from the driver, the bass becomes more pronounced and evenly distributed across the car’s surface area. If you are looking for hard hitting bass that goes superbly with genres focused on bass (Rap, Dubstep, Trap, etc.), this is the direction for you.
Facing the Rear Seat – Towards the Front of the Car
A highly unconventional position includes aiming the entire enclosure inwards towards the hood and inverting the subwoofers into a sealed enclosure so the woofer is facing downward protruding out of the enclosure. This means that instead of facing the trunk, the subwoofers are now facing the passenger and driver. Unlike the opposite direction mentioned above, this placement allows for bass to be felt by each and every component of your car. This will not drown out notes above 200hz so this is a good idea for those of you not focused on overwhelming bass.
Facing Upward – Towards The Trunk Hatch
This type of position is used by car owners looking to save room in their cargo space. Facing the subwoofer upward while in the trunk, gives you big bass without consuming a lot of space. This direction offers crisp sound with a slight advantage to high frequencies and treble, and won’t rattle loose parts in your vehicle as much. When done right, the bass is so smooth, that you wouldn’t even know where the aftermarket woofer is installed. Additionally, experimenting with the location will also have a greater impact on the sound quality. For example, a subwoofer placed at the right corner of your trunk means louder results for the driver, but better bass response for the passengers.