3 12" sub enclosure help?

[SwaveY]

Alright, they are just some cheap durabrand 12's but i blew up the 18xxx and havnt had any money to invest into car audio, figuired they would be better than the 6x9s if i made a decent box. Im very good at woodworking, dont hesitate to throw somethin tricky at me, im up for it. I was looking to maybe do ported? But im not sure on dimensions, im not good at "applying the forumula" i guess you could say. I was thinking of kinda a C ( 2 subs facing at an angle and one facing straight back/forward...whatever). Im not in this forum much, so i dont know who to ask for plans, ill throw you a couple bucks if its what im looking for... i want a challenge. The box i had my 18 in is a 4.2 cubic sealed, dimensions are 35 x 19 x 14 ... and thats max dimensions for this box, or else it will not fit into the trunk. This is the only info i gathered about the subs:

POWER HANDLING: 400 WATTS RATED POWER

IMPEDANCE: 4 ohm

FREQUENCY RESPONCE: 27Hz-800Hz

SPL: 90dB

Click to read more...

 

[SwaveY]

Okay, same design ( a C ) but with 1.2 sealed for each sub? Can make 3 seperate chambers, just need designs so it fits in my trunk. That shouldnt be that hard... 5 bucks... who wants it?