Single 12" Type R ported box?

[svolach]

Ok guys, I have a 06 12" Type R 4ohm that I want to put in a ported box. The manual for the sub says 1.7cubes at 33 or 34hz i think. Should I go by that or is there any better dimensions for the box? Keep in mind I will be powering this with a Rockford P4004 its rated at 200Wx2 @ 4ohm however the spec sheet says it gives out 550RMS total. I listen to all kinds of music and I don't like it when its too boomy and distorted, but I want it to hit nice and tight but still be able to feel/hear it form teh outside.... So what box size do you suggest?

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[delvryboy 5,000+ posts]

2.5@35hz

 

[PSturmer 10+ year member]

2.5 what be good. i'd tune to more like 32

 

[AJ²06 5,000+ posts]

2.5 what be good. i'd tune to more like 32

Thats what I got... 32hz in 2.2cf... )

 

[svolach]

Hmm.. 2.5.. that'll turn out to be kind of a big box, its goin in a Acura Legend sedan, and hte trunk is pretty small //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif .. but i guess i can live wiht it.

also.. ive heard its good to put eggcrate foam around the interior of hte box to eliminate standing waves. Would you guys recommend it?

 

[OneKrazyKeebler 10+ year member]

tune to anything below 35hz and you will be happy

 

[svolach]

so all of you guys recommend a bigger then the recommended 1.7 box? It won't be distorted and too boomy? I'm just used to usually going by the manufacturers recommendations for stuff like this.

 

[PowerNaudio 10+ year member]

for a nice flat freq responce then go with the 1.7cuft@ 27Hz.

if you want a stronger low end then 2.5@28Hz. would be my choice.

laters

 

[PSturmer 10+ year member]

right now i have a 3 cube @ 34 box with 52 sq inches of port area. it wanged hard as helll. except yesterday i was benching my hifonics bxi 1206d and my 12'' type R blew.

i know that tcab was doing 2.75 cubes in his boxes.

today i am actaully doing a design for a guy. double chamber, 2.75 cubes each with 42 sq inches of port area tuned to 32. its for 12''type R's powered by a hercules and its going in a truck, that should be really loud.

 

[shooked 10+ year member]

35 hertz in 2^3 after displacement FTW!

 

[svolach]

Ok, so what I ended up making was this:

2.25 at 32hz.

It is f'n loud, however the sound quality is shit.. Its too boomy, and all over the place. Its not tight like i wanted it to be. I have a Avic N1 with a parametric equalizer and crossover built in.. plus the crossover on the RF P4004 amp so i shoudl have enough tuning capability. I am now thinking of putting something inside the box.. maybe get some fat carpet, and carpet the walls inside.. or eggcrates.. or polyfill?.. what do you guys suggest?

 

[AlpineUser 10+ year member]

if you woulda said you wanted it tight we coulda told you sealed thats what i have mine in 2 12" 06 Model R's with 300 watts in each sub and it sounds sweet

its like 1.75 cubes in each chamber