Its just my opinion but i wouldnt buy a sub or ebay. and i would by a popular one like sony or rockford. I bought a sub from my friend like that. it was only 120watts and i hated it. I found an old speaker box someone was throwing out and i put it in my room with my system in there. Guess what. I turned on a song with a good thump and then bang. It just craped out. I hate it when i blow speakers. Ive gone through like 4 all ready. If you want something good and for a low price I would go to best buy.

 

Here are the few custom fit boxes that I have found.

Wooden box

Wooden box for Reg. Cab

Composite Box

 

dont for get about cuztom fiberglass!

 

Hey |3|ackAc|D...

You did some modifying of the rear seat mounting brackets and added 2 pretty good sized blocks of wood as spacers to each side in order to get your box in there. I have a keen eye for these things(been installing stereos professionally since I was 15, 37 now). I have done this kind of thing a few times, but dont recommend doing it since it is messing with the seat mounting and wood doesnt provide the same structural integrity as steel does. And as an installer, that can be an issue with liability when an accident occurs and the rear seat ends up in the front seat area.

That is probly not what most of these guys are looking to do. There are plenty of ready-made boxes that will fit under the rear seat of the 4-doors and the only mod needed will be to remove the metal fold-flat trays. Usually they are for either 8" or 10" subs, which are more than enough unless your wanting tremendous amounts of bass.

 

do all of these solutions work with the fold flat rear seat option or is there something else for that?

 

yea thats true, he can get a fiberglass box made for those comp's and have it fit under the seat with out lifting it. but the key thing there is not to have an accident, plus since i put those blocks in with the extra bolts, i noticed that the bolt heads are almost as big as the hole. so i bought some washers, but so far they have held, i mean i had 4 of my big buddyies in the back one day and 3 chicks in front. it held up alright.

 

And the subs are still touching the bottom of the seat, you can see the indentation, dude that can't be good for the subs, you're restricting the movement.

 

Well if the subs are hitting the bottom of the seat then your not even getting any real bass, more or less just vibration. The whole idea of a sub is to move air, the wave it creates expands and is thereby only limited by the interior cubic volume of the cab to reach whatever resonance it can achieve in turn giving you the boom, this is also why the bass gets louder when you roll the windows down, it allows the wave to develop and expand outside the internal airspace of the cab.

Judging by the picture it is obvious that your restricting the excursion of the subs by having the seat rest on top of them and this could easily result in damage to the speakers voice coil and also the rubber surround. This will only cause stress as time goes by and especially with the square design of those particular subs. I have had to replace many pairs of those because they dont hold up well, they might look cool, but they are square and yet the voice coil is still round!

 

have you ever touched the bottom of the seat ... its soft.. it goes right thru the seat..

what pushes the the air is the square not the voice coil..

anyways im going to get a new box, it will be fiberglass.. so i wont have to have it so high.

 

And exactly what do you think makes that square go up and down???

Uh, how about the voice coil... the electric current runs through the voice coil, the varying current is polarized alternating current and it pushes and pulls the magnet back and forth making the speaker cone(the square thing) move. It being of a square shape instead of a round shape, like the voice coil is, it tends to create additional stress in the far corners of which are really out of balance from the coil, unlike a round woofer which has the same weight and force/resistance all the way around its outer diameter. It looks as if the rear portion of the speaker cone(the square thing) is hitting the bottom of the seat more than the front part and that means that everytime it extends outwards it is torqueing the voice coil a bit, this will lead to speaker failure much sooner than if it was allowed to move freely.

I havent spent 22 years in the stereo/alarm/aftermarket installation business without learning a thing or 2 about how these things work.