F250 Super Duty Crew Cab

Use 3/4 inch MDF for your box, nothing thinner! If you dont have access to MDF, partical board will work, but DONT use plywood. All joints should be tight fitting and properly glued up. apply glue to each mating surface, a thin layer. You can secure the box together with either 1 1/2 inch drywall screws or with a pnuematic finsh nailer. without knowing exactly which sub you have, it is impossible to know the correct volume for the box. Probably in the area of 1.5 2.5 cubic feet will work. would be best to post the model of your woofer and/or ALL the theil small parameters

 

Viking why would you suggest not using plywood...how about high quality marine grade plywood???

 

I dont suggest the use of plywood for one simple reason, plywood is a laminated product, the layers are glued and pressed together, which does make a very strong surface for subfloors and the likes. But the laminations can, de-laminate under the stress and vibration of a subwoofer. when this happens, you will get a buzz sound out of the box, seen it 2 or 3 times over the years. The only plywood i could ever reccommend is die board, but most folks will never have access to it or be able to afford it. It is made under very strict conditions.

Therefore it is best for the average joe blow to stick with a time tested and proven wood that will hold up under some very harsh conditions, such as MDF or even particle board.

As far as marine grade goes, same issues as stated above, although not as likely. Whenever ai build a box, it must be solid and not return to the shop for some stipd reason such as a delamination buzzing everytime the customer plays the latest rap crap!!!!!!


Some folks like ply, thats fine, go for it if you want, but you wont find it anything I build.

 

Ahh ic...I may try a box outta good plywood later in the future...but something about a nice sheet of 4x8 MDF makes me spooge

 

First , you want the sub to perform well with your 300 watt amp, therefore you want the sub to obtain near maximum output for the power given. With that said, go with the largest sealed box they reccomend. that should put you close to the maximum displacement limited power handling of the sub, which is what you want. another alternitive would be to vent the enclosure, that would increase output generally in the area of 35 - 70 Hz, which would do fine with the music you listen too. Especially the "rap crap" LOL!!!!!!!!! I prefer country western, hair band rock, stuff like that.... i always prefer a vented box myself..........

 

Vented boxes are also cool...well I think they are lol