Box/Amps/Subs need advice on existing and new equipment

[H2Ocaver]

well here goes my first post, thanks in advance....

I have this sealed box in the back of an extra cab Dakota. Dimmensions are as listed, but the height 1 is the bottom and height 2 is the top and the angled face is the front so I can recline the seats.

The box dimmensions are as listed but the box has been fiberglassed with resen only on the inside (completely) and cloth and resin on the outside. It's birch and the front (speakers installed on front) is 1.5 inches thinck + glass and resin. The box is divided into 3 chambers, the dividers are .75 birch and glassed as weel.

currently I have Three T1D2 (DVC -2 ohms each VC) Rockford 15's in the box.

The subs are set as 4 ohm total for each, and the amp sees 1.333 ohms

The current amp is a Rockford T1500bdcp.

I know rockford does not show parameters for a these subs in a sealed box, but they sound great.

OK, so I happened upon two more Rockford T1500bdcp's Exactly like the one I have already.

Rockford's site shows the subs are supposed to handle 1000w rms and 2000w peak. I have been told that this is not true.

So, should I run one amp on each speaker @ 4 ohms and wait until they fall apart? or find new subs?

This is the reason I gave the box measurements, it looks like the subs I see on this forum have assemblies too large to fit inot the box dur to the subs being mounted at an angle. I can add another 1 inch thick face on top of the current face in order to get more mounting depth.

So what would you do??

Thanks-Eric

width - 50 inches

height 1- 17 inches

height 2- 12 inches

depth - 24 inches

Material thickness - .75 inches

Interior Volume - 8.20964 - not including two dividers @ .75 each and ~1/4 inch of resin on the entire inside, not including woofer displacement

[H2Ocaver]

What subs would fit and handle a T1500bdcp on each one?

[H2Ocaver]

any help would be appreciated