my first spl attempt

60ndown
10+ year member

CarAudio.com Veteran
i have an orion 2500 d and a mini van, i want to build a box that can do 25-50 hz stupid loud,

theres lots of 15s and 18s here for sale right now and i might be able to trade my rl-ps for them?

which of the available subs here currently will do 25-50 loudest and cleanest off an orion 2500d in a mini van (box size could be up to 16 cubes +)

 
well for starters if you want SPL you're gonna need to sacrifice a good bit of SQ and a musical frequency response to hit higher scores. this is ok, thats why we have a fart box for comps, and daily boxes for music. get a box designed with a port plug. essentially so that with the plug in, itll be tuned down for daily. then with it out, you're port area goes up and itll be tuned to like 50ish Hz for the comps. A wall will be alot of work, as well as bump u up to another class in certain circuits. id say get 1 18 RE MT or an FI BTL and if you dont do a wall (which will be easier) you can likely stay in db drag street C, which will be alot easier and far less exspensive then going to the bigger classes (super street). That example is for dB Drag but other circuits break u down in to classes depending on the gear you have. the orion will work, but you may in time want to add 2nd orion, or just go with new amps. youll need some nice batteries, id say at least 2 runs of 1/0awg wire, though if u get real serious youll wanna bump that up to 8 runs. also keep an eye out for a nice HO alty. chances are an alty for ur car will be cheaper than an alty for imports ::cough VW's::cough::. good luck man

 
im not competeing this is a fun project only

im not building a wall/

i want 25-50 hz only (with roll off id expext 20-60 ish?)

^ as loud as possible

i have mdf and skils.

what i want is a reccomendatio for a sub thats for sale here right now. ive seen

hd315

re xxx 18

fi q 15

i need someone who uderstands these type subs to reccomend which 1 will do 25-50hz loudest, in any box w any port dimensions up to 16 cubes.

 
I wouldn't recommend any of those for strictly SPL. Keep searching. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

With that power I'd suggest a RE MT 15, DD9500 series, or something else SPL-based with a 3" voice coil (and room to add more power later).

 
I wouldn't recommend any of those for strictly SPL. Keep searching. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
With that power I'd suggest a RE MT 15, DD9500 series, or something else SPL-based with a 3" voice coil (and room to add more power later).
im guessing with my stock (100amp?) electrical i wont be pushing too hard too often, but occasionally at lights and stuff i may want to see if i can make the other car spill their coffe with a 30 hz burp //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

so a lower power handlng sub is only gonna get tested occasionally, im not driving around full volume all the time //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 
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60ndown

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