This is what I have currently a sundown sax 1200d on a treo 15 ssi in a 3 ft cu box ported to 35 hz facing rear and I am thinking going 2 gcon 10s firing forward sealed off from trunk it's a little smaller cone area but would be lighter on suspension car is a 99 camry trunk is 32 deep 19 tall 38 wide just want to get most bang for buck do u think I will lose any output or will I gain

if you want output why go sealed? whats you goal?

No not going sealed that was my available space in trunk goal is sound good with good output not competing no spl

I meant sealed off from trunk

Anyone else what do u think

Not too familiar with the ssi Treo line but I believe a 15 has more cone area than 2 10's

It does but does it also have more motor force?  

 

Too many other variables as well..

I looked up the treo ssi specifications it has 750 rms xmax 27mm and 3 inch coil

Bump

Hard to tell if its going to sound louder or better quality.

What are you trying to accomplish? overall sq? lows?

 

You would probably have a safer bet if you saved up a few more dollars and bought dual icons, you would probably notice a bigger difference.