Design questions for "4 RE SxPRO's"

[Roppolo 10+ year member]

Thanks everyone in advance!

So the box is already built 100%

I'm just wondering

*Whats it tuned at?

*What db do you think I can hit?

*Will the box even sound good?

*What could I of done to make it better?

So I will have

4 RE SxPROS

2 RE 5000.1 Amps

I have no clue really what the box is tuned at,

I just built a box to fit 4 subs and fit in a right spot.

Here's the details, if you need to know anything else just ask.

Vehicle : 2005 avalanche

Location in the vehicle: Behind the back seats with the Midgard removed.

Space available (Length x Width x Height):30"x49"x18"

Subwoofer make and model: RE SxPRO

Subwoofer Size:12"

Number of Subwoofers:4

Type of Port (Kerfed, Slot, Aero, etc.):?

What type of music do you like?:Rap

Is your goal SPL or Everyday Music?:Something loud.

Tuning Freq (Hz):?

Volume : Loud

Here are some pics.

The top plate is on now, the front is double faced,

Also has rings and fiberglass now. Currently sanding

ALL DAY long lol.

Oh the ports are 11" wide and about 3" tall.

They go all the way to the back almost about

4" from the back plate.

Like I said I'm new to this, I just built something that

Would fit in the truck lol.

Oh the subs req 2cu ft of space for best results,

So I tried to make each chamber around 2 cu ft

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