ported box for 2 15" audiopipes

what would be better for a sealed box??? dual chamber or single??...its for a friend that wants something like this--------> ...he has a ford excursion

 

okk....well he told me now that that dsign couldnt be done cuz it would be too tall and his dad wouldnt let him do it if he cant see the back window

 

so...should the subs be in separate chambers or just a sinlge chamber

 

hmm ok im cheking old threads to see if i find sumthing

 

well hes gonna be using 2 amps, and he has my same subs

 

would 2 more subs in sealed enclosures raise my spl?? cuz i had an idea....get the 2 cvr's and use them in the vented enclosure and use the audiopipes in the sealed enclosure i had them before...will it work??

 

ohh ok then...does a new sub need break in?

 

hmm okk kool

 

what would you recomend to get more than 138 dbs?? besides buying new subs.

 

well they were only getting 370 watts for both so that about 135 per sub, an my electrical i think its okk the van already has 4 gauge and a 120 alternator...it makes about 14.sumthing lol i need a DMM to get more accurate readngs...

 

lol i wont mismatch em then lol...yea that ill look really ghetto style lol but anyways...im going to hook the subs 1 per channel. since i have a 2 channel amp the amp rating is 300@4 x 2 so ill get more power than bridged...putting the box looking up decreased the dbs by .5...

 

i think im also gonna do the big three...i found 2 gauge @ advance auto parts @ about 1.70 the foot

 

if i hook a sub per channel giving it 300x2 will that increase it?