need help with sub

if im understanding correctly, you are running 2 10s with a 700.5, which to my knowledge puts out 420rms at 2 ohms on the sub side, and you have 1.5 cu ft PER CHAMBER? im pretty sure 1.5 per chamber is a bit much for a 10..... and i really don't know if 420watts distributed to 2 subs will really make too much impact, especially when you have that big of a box.... a lot of bass would be lost before it ever transmits to the car.... i have a alpine type x 10 inch in the recommended sealed size probox and that box is only .75 cu ft and my sub is 1000rms and 3000peak... and it sounds beautiful.... sooo my suggestion is: get a smaller box (per chamber airspace) to begin with and make sure your subs are getting the wattage they need from the amp.

 

oh ok, my bad.... and are they wired to 2 ohm?

 

bigger box is what u need... not smaller... will make them hit the low notes better but still have the high notes in a sealed box.. and more power or a ported box

 

i think u need more amp in all honesty.. but u could throw those hx2's in ur box and see how they sound