Phoenix Gold Phorum

hi guys...
i need some suggestion here on sub setup.

I've got a rsd12" in a sealed 1.2cuft and i'm lovin it.
But soon or later i think i would need more output and bass..

shall i add one more rsd12" to the trunk or just drive a single TI elite 12".
The amp is rsd1200.1 and load is at 2ohms.

so ..which one ?

2 rsd12" or 1 Ti Elite 12" ?

enclosures : 1.2cuft for the rsd and whatever approprite for the Ti
objective : more bass /more output

More output...more cone area = 2 RSD12's

thannx vin...

but , output is also a factor of excursion rite ? i mean its cone area( Sd )*excurison( xmax ) giving volume displacement .. moving air

so since the Ti elite has much longer excursion then the rsd12" ( the spec says its 3" excursion ) , wouldnt it have more output ???
well this is based on the theory....