RAM_Designs

I have to admit...I do like my 28hz box.

40in^2 will work great, and round-over the inner and outer edges to keep port noise to a minimum.

The 150+ with the 8"er was done in a CRX, IIRC.

I've had good results with 1.5ft^3 for one. So something like 2.75-3ft^3 would work good for a pair in a daily box.

I'd still tune around 34-35hz for daily. Do a spl box with a 50hz tuning(use aeroports) and adjust tuning until you stop gaining.

Agreed. Make it the full depth of the box, and invert the sub so you can tell if it's getting stinky.

IIRC that build was using TC LMS Ultras, which don't need but 4-5ft^3 each to work great.

Same thing I was thinking.

I like the way that truck sits.

If you want to run with this design I'd put the subs on top and as far to the right as possible.

Lol, I dont think 6ft^3 would fit so well in my dorm room haha. And I don't think my 2 8's would do so well in 6ft^3 I thought you has 12's for some reason...in that case, do 2.75ft^3 with a full length 4" aeroport for a ~26hz tuning.

Hard to say until it's all said and done. There's no standard formula for doing hair tricks.

I believe you can at the psp-inc website. www.psp-inc.com

I said before that you're going to need to make them long by going out and buying your own thin-wall PVC...contact psp-inc about getting just the flares and coupling rings, and buy the PVC yourself. 17" port length is going to give you a 36hz tuning.

And actually, if you want to just do a double baffle and have it one layer everywhere else(with adequate bracing), you can do something like 11.5ft^3 at 33hz with 21" long ports. That will give you 4.25" from the back wall once installed, which is fine for an aeroport.

You can make them longer using your own thin-wall PVC, which you're going to have to do...you could do a slot port, but it would take up too much volume.

The problem I see is your depth limiting the amount of port length you can use. If you want to use four 6" aeros they're going to be too close to the back wall once installed. I came up with something that's 9.5ft^3 with a 33hz tuning, doubled up all around, but port length needs to be 26" each.

If you want an easy way out() try 6ft^3 with a full length 6" aeroport for a 25hz tuning.

I figured out why it's suggesting 17", because it's finding port length based on the GROSS volume before any displacements, not with the NET volume after all displacements(14.6ft^3 vs 11.5ft^3)...a very big flaw to have, especially in a calc that other people are using to build boxes. Torres needs to find out a way to fix this, and quick.

The SMD's work well in smaller boxes, and you have a ton of power on tap, so you reallymight not need that large of a box. And I would also try to double-up the entire box...maybe flush mount the subs as well. Those port specs are wrong as well. Four 6" aeros in an 11.5ft^3 box are going to need to be 22.5" long each to achieve a 32hz tuning.

Can you make a kerf with a 2" radius? I've seen 3" but not 2" while using 3/4" MDF. Also, that port opening is too close to the left sub.

Also, can you fit 41" wide in your GC?

Well if you were tuned that high you were most certainly lacking on the low notes, correct? Just by eyeballing those t/s that sub is going to want something like 6ft^3 tuned to 28-32hz depending on what balance of lows/output you're after.

My Kroger brother!

What exactly do you feel is lacking with your current box? Is it overall output, or just output in a certain region that is disappointing you? Hey, you're local!