Sundown Audio x15 V1 Single Box Design

[Pommysoldier1999]

Can someone please help me with a box design for the Sundown V1 X15. I can only do sub and port up as my trunk is small, I would like to tune to 30 - 40hz. Any help would be greatly appreciated

My usable dimensions are 93cm length x 40cm width x 52cm height

Thanks

[Triticum Agricolam]

What vehicle, what amp?

Is your car a trunk car or a hatchback?

[Pommysoldier1999]

Its a hatchback Ford Fiesta 2014. Its a dual 4d running off a Stetsom 6k 1ohm amp

[Joe X]

So here is a suggestion, power: to sub rated, amp subsonic filter to 28Hz, figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.