I made a box using the manufacture dimensions using 1 1/4" MDF board , after I built the box I noticed things werent fitting quite right. I measured the MDF and to my surprise , 1 3/4" So now I'm stuck and can't take away from the volume. I have a box for dual 12" subs , it is one box with a seperation keeping them from combining air. I was thinking of taking the middle seperation out but dont know what the difference is between seperated or not seperated , if you could give me any details that would be great.
If I do take out the middle seperation , I am going to recalculate and add a couple braces to give more volume to equal it all out. I'm just afraid I will lose SPL and SQ by removing it , any info is very much appreciated. Thanks
I'm sure someone else could tell you if they can share the same air space, but you could create the illusion of a larger box by putting some polyfill inside.
as long as the subs are wired together (mono), sharing a volume shouldn't cause any problems with their operation, but the remember the separation also acts as an internal brace. if you remove it, the box may want to flex under heavy SPLs.
u are facing a serious problem. in case one of the subs gets disconnected, ur forseeing a probable damage to one of the subs, becasue the other is pulling one of the subs with it. also, in case one sub is working a lil harder, or maybe getting slightly a lil bit more power, u get unwanted distortion in your sound, kinda like when u have a small air leak in ur box. i recommend, if u only want that few space that taking out the divider willl create, u should rather go with polyfill. that will basically cause ur subs to sound similar as in the box with the higher volume.
dont run 2 subs under the same chamber in your box. BIG mistake, nick's polyfill idea would be the best solution to your problem, or re-make your box using the correct thickness, but keep the divider in there.
don't listen to these guys telling you NOT to run the two subs in the same air space.
there is absolutely NO WAY that you can damage either sub if one is disconnected.
once again, if you're wiring both subs together (mono), there's absolutely NO WAY one sub can get more power than the other, so you don't have to worry about any distortion.
all this stuff about "what if" you wire it up wrong, or if a wire becomes disconnected, or feeding uneven power and stuff... COME ON! use common sense and do things right the first time - then you don't have to worry about stupid things like that happening.
ok I have redone my box , doing a little adjusting to the port size and the divider size but still keeping it in there , I caulked all around using 100% silicone caulk and well thats about it , my goal was 3.5 cu ft per chamber but it came out to 3.47 so I adjusted the ports accordingly. Thank you all for your help , if I have anymore problems Ill be back , you were very helpful.