Need help on RL-p box

[gixxer9 10+ year member]

I am looking to design a box that will net 1.5 ft^3, and be tuned at 34 hz that will still fit under the rear seat of my Silverado.

I have come up with some rudimentary dimensions that will provide an estimated 1.68 ft^3 gross, and 1.53 ft^3 after sub, but before port.

The RL-p 12" displaces .15 ft^3

View attachment 11582

From the top: W=15", L=32"

From the front, from left to right: H1=7", H2=9", L1=12", L2=20"

You should be able to interpolate the rest...

Thank you!

Click to read more...

 

[gixxer9 10+ year member]

The internal volume should actually be greater than 1.68 ft^3 because I just calculated volume by breaking my box into two, without compensating for the lack of the two adjoining sides...

Mr. Cabinetry, I sure could use some advice from you.... I will probably even ask you for a quote on building the final design via pm.

Thanks.

 

[gixxer9 10+ year member]

The RL-p12 will be downfiring, and I'm looking for assistance with porting, and still ending up with 1.5 ft^3 net.

 

[mlstrass 5,000+ posts]

If you're willing to take a 2 hour drive I can build one for you. But I'd do the RL-P no higher than 32Hz as they don't like/need tunes that high and lose SQ pretty quickly.

I'm assuming the sub will be in the part on the right in your picture. That's the 20" length part, correct?

 

[gixxer9 10+ year member]

I'm assuming the sub will be in the part on the right in your picture. That's the 20" length part, correct?

That's correct. I appreciate your help on this, as I have never gone ported before. I want to make sure that my SQ is as good as possible.

 

[gixxer9 10+ year member]

Anyone have a little time to help me figure this out, please?

 

[gixxer9 10+ year member]

^^^ Please... : )

 

[mlstrass 5,000+ posts]

I'll try to work on it later tonight, just been way busy lately....

 

[gixxer9 10+ year member]

Cool, thanks!

 

[carguy83 10+ year member]

i'd tune from 28-30 for the rl-p. no higher IMO.

my current box is tuned to 30 hz for my rl-p 15. pretty nice output and still fairly flat in the response.

 

[jellyfish420 10+ year member]

i've had rl-p's in a variety of boxes, and personally i liked 34 the best. i've had them tuned from 16Hz all the way to 37 in 1Hz increments. take it for what its worth.....

 

[gixxer9 10+ year member]

Well, 34 hz is what Soundsplinter recommends for the small ported box... I have some pretty extreme size limitations to follow here, and 1.5 ft^3 net is about the most I can do.

 

[gixxer9 10+ year member]

Anyone have the ability to look at my potential box on their design software?

 

[60ndown 10+ year member]

how much power you got? if its anywhere near 1000 rms go sealed for simplicity. my 12" x 2 rlps would bounce the wipers sealed....in a mini van //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[gixxer9 10+ year member]

With ~500 rms each? What size box did you use? I have a limited amount of space to work with... I might be able to come up with about 2 ft^3 gross...

I have three monoblocks in my possession, an Orion 1200d, an Audison lRX1.400, and a Zapco 1100.1, all of which are around a 1000 watts rms...