RL-p15 or 12

jellyfish420
10+ year member

i design boxes .......
i've been thinking about getting 2 RL-p 15's, i got1500w, and a box that is about 5.5ft, 90in^2 port @34. do you think it would be wiser to get two 12's instead cause i would be able to make the box a little bigger, tune a little lower, and have some more port. IN MY APPLICATION...which do you think would be the wiser of the 2 choices?

 
i'd personally go with the 2 12's, bigger box, tune lower, more commanding lows with bigger box, better SQ with lower tune etc..

but thats just meeee //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 
get them now, mail them to me, and ill tell you waht i think //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

or you can mail the HSXA to me. your choice

 
IN MY APPLICATION...which do you think would be the wiser of the 2 choices?
This is going to be the running joke for a while, ey? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Anyways, I would probably go with the 12's with that amount of box space. It's boarderline....but I'd rather have a box that's a lil' too big, and fill it in some with wood if needed than be stuck with a box that's too small (if you went with the 15's)

 
i'm seriously thinking 12's i'm gonna figure out the box size and everything later. i made cardboard templates of the side of both boxes(12 & 15) to see how to fit it, angling up from the glass. on a side note...how far away from the glass should i stay? i'm like 3/4" away...i know the glass flexs out but does it go in that far? and last the 2-12's will have more cone area, and more xmax...so it should be louder than 1-15...right?

 
ok...i'm done caculating. and it goes box for RL-p 15's'----7ft^3 after displacement @34Hz w/ 88.75in^2 port and RL-p 12's------6.6ft^3 after " @34Hz w/ 120in^2 port. the 15 box is right in the recomended, with min port area, and the 12 box is above rec volume, and huge port. bbp6 showed the 12 being lower but the 15 won over 50Hz...but who cares that high???

bbp64cr.jpg


 
Go for the the 12s with the hella port! Seriously, that's a big ****ing port! I like it! It's also got a smoother response, not peaky like the others.
12's it is, ya i really liked the way the graph looked...who knows in a car but the box is nice too. the yellow graph in the back (design 3) is the hybrid...i modeled it as an SX since i don't have actual specs.

 
hey check out this.....

orange 2-RL-p 12's 6.6ft box

yellow 1 hybrid 15 3.5ft box(current)

green 1 hybrid 15 6ft box (for shits and giggles)

it shows the single 15 would do better lower than the 2 12's.

but it is kinda peaky...what do you think?

bbp623qc.jpg


 
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jellyfish420

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i design boxes .......
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