hey,
im thinking of making some new fiberglass speaker pods for the front doors of my pulsar to accomodate 2 sets of 6.5" splits, my question is what do you guys think of having them sealed off from the doors completely, my theory is this will help stop rattles etc inside the doors and also save me from cutting holes in my door as the pods will just bolt through the trimmed panel into the door skin. will this have any adverse affects on the sound of my speakers by the enclosure being too small or something, haw can i tell the right size for the enclosure? the splits are 6.5"jaycar kevlar 60wrms ones if this makes any difference.

cheers.

*edit* just realised i put this in the wrong section, oh well...

it will likely sound terrible.
midbasses need to breathe, at least 10litres each or more if possible.
unless you limit the frequency to 200Hz or above, then they might be alright.

why do you need 2 pairs? If it's to get more midbass, then you definitely need to have breathing space.

also, having too little space around the magnet will cause 'choking' and limit the low frequency, cause distortion, and muddy the sound.

hmmm, thought that might be the case, would the one standard hole in the door skin (i think its 5 inch) acting like a sort of "port" into the door cavity be enough or would cutting new holes be better.

i dont really NEED 2 sets, but hey, its gonna be louder and it looks cool as!

Just run them IB(infinite baffle)/freeair as normal, you'll find they're louder than sealing them up - you can try this by placing your midbass' on some MDF spacer rings, then holding them on a table to effectively run them sealed; they'll sound terrible, and quiet. Lift them off and cup them between your thumb and index finger, much better.

If you can, open up the hole in the door skin (without ruining the door/window operation); i found some gains by doing this, which lets the back wave of the midbass enter and dissipate into the door itself, making the IB more effective - thats the theory i've been told, anyhow.