Hey guys, well I was bored as hell at work tonight and started thinking of what I want to do next to the balt, so I decided I want to take my two 12" pioneers and do something like what was done here: https://www.cobaltss.net/forums/show...om+trunk+setup

My question on that is my pio's are 1000w max each, thats the only number given on the sub itself so I don't know if that does any good and Ive got a 1200w amp powering both of them. Will the air flow fine thru a similar setup as the one shown in the link? Will I have any problems with them if I was to do something like that? Should I go with a ported bpx design or what do you all think? I'm wanting to go one sub on each side also.

Next question, when I go to make my setup, what material wood should I use? Just regular wood do or a kind of fiber board or? What do you all suggest. Im new to alot of audio stuff so I'm just trying my best here. And finally, in addition to my two pioneers, I have two 12" rockford fosgate p1's with an 800w amp in my room doing nothing. They are 300w each so I'm wondering if I could encorporate those into a trunk setup also. If I was to run those less powerful subs with my pioneers, will they work fine or the lesser power subs disrupt air/vibration flow thru the trunk? Will it cause a turbulence like or will it be ok? Sorry its late I'm just trying to remember everything I thought of at work and get it on here before I forget lol. Thanks for any help offered, I tried searching some of it but didn't get much. Thanks!

 

for the power ratings.... you need to know the model of sub woofer, then you can take that information and go search for yourself or i may be able to take a look. the next thing you need to worry about it you amp model find the specs on that and say its rated for 1200w rms at 1ohm. Ok well cool because now if you have two dual voice coil sub woofers that are a 4ohm configuration you can wire them in to supply a 1 or ohm load. you would ofcourse wire them into 1ohm and thus using 1200w rms out of the amp into two speakers and bam 600w per speaker

second the materials you should use are 3/4" MDF partical board, regular wood glue, carpenter clamps, fiberglass (if you know how)

i dont know what you mean when you say "Will the air flow fine thru a similar setup" will the air flow through what?

turbulence only happens with an enclosure that has a vent, what the product of that means (with out getting into crazy details) is that you will hear a raspyness coming from your port end, and its usually not great for your subwoofer either, it messes with response and pressure in the chamber.

i would not set up two sub stages..... cancellation will occur and it would take forever to get them phased properly

as far as box design... i would use the box that yeilded the flat-most response line and build from there

 

^^^ awesome advice... just for the OP dont get particle board. while kk said "mdf particle board" particle board is far from MDF (medium density fiberboard) and dont look at peak numbers. they are useless

 

Im not very knowledgable with audio so I'm trying my best here. I was reading thru the thread given in my first post and someone had asked about airspace in his setup. He has lower powered subs than I do and someone had asked about there being enough airflow thru his box with it being small or something along those lines. So I didnt know if with me having a higher powered sub if a small setup like he has would hurt anything.

And thats what I had thought about with the cancelling each other out. Thanks for the help guys!

 

nah theres no airflow necessary for a box but airspace is very much a concern. As long as you have the correct sized box for those subs then your kosher.

Like KK said again the only flow issues you would ever run into is a small port causing port noise

 

alright thanks

 

yeah i typed particle but i meant fiber, my fault lol

The model of sub woofers and amp being used? i am curious now.... ill throw together a box in winisd and maybe get you a cut sheet. did you need the box in the corner of the trunk?

i have some things for sale too

 

Ive actually got all the materials in the garage, found some particle board in the corner and other stuff in the cabinets but appreciate the offer. Im still debating on what I'm going to do after looking at the trunk and visualizing what I want. The box I have now is weird where the subs are inset in it with an opening in the front with a piece of lexan covering that, so its a bitch to get the sub out right now or ide get the info for ya. All I can tell you is its a sony Xplode 1200w amp I bought for cheap off my friend and the pioneers were free lol. Thanks again for the help!

 

ur current box is a 4th order bandpass... fyi

 

ok thanks

 

4th order - yuck

 

thats why im ditching it this weekend.