Ahh it all begins we have our little tracker and decide to give it a little more bass.

We start by removing the box that was in the back but only achieved 144 db with 2 MA audio 12's

Before we did anything else we had to beef up the charging system with dual alternators and batteries, With this system we maintained a constant 14v.

We had to make seperate boxes for each individual sub to achieve maximum spl

Here you can see the individual boxes bolted togethor while the inside was covered with fiberglass resin for strength.

We used a heat gun to help the resin dry as you can clearly see in the picture shane tending to the heat gun so it wont catch fire and burn the building down.

One of them assembeled

The box is placed in the back of the back of the tracker so we can get started on the wall.

It is not the cleanest looking here but here is the Rockford power 1100 that we used. We really could have used another one but this would have to do on short notice. You can also see the epx symmerty 2 which made a big difference.

The wall of mdf gets put in place.

The wall with the holes cut out for the subs and ports.

We had some sound measuring equipment brought in (thanks bill).

We installed 6 batteries and hooked them up in paralell (obvously) in order to try and give the amp a more constant power source but the alternators couldent bring the volts up past 13.8 it was just too much for them so we scrapped that idea.

We filled the cracks and screw holes with body filler and sanded it smooth.

Primer was applied in preperation for white paint.

Two coats of white paint were applied so that the box would match the body colour.

The port was painted black then clearcoated and installed along with the subs.

Hmm.. Looks kind of intimidating dosen't it?

Well we went into the sound comp, burped 45 htz and boom 150.8 winning 1st in its class. 6.8 db was gained just by changing the box and tuning it properly.