RAM_Designs

This one is for Ryan Watts at the caraudioclassifieds.org forum. Four 15" Kicker L7's going in the back of a Nissan Xterra...had to take the back seat out to make this possible. Final specs are 15.5ft^3 with a 33hz tuning via a 39.75"x6" port.

They're not a beefy sub, but hopefully in groups of three they can do some damage...good sounding damage. Sensitivity is over 92db, so that's good for me as well since these are a low-power sub.

That is all that is needed.

Vid posted in OP...would have had it sooner but had to eat dinner.

I gots, and you do nots.

PM me info? I loved the one I had a few years ago.

Wish I still lived in north Frisco. PM me a price?

Go with 7ft^3 and tune to your liking.

I'm tuned to 28hz and can play anything...Zeppelin included.

Product I'm looking for: I prefer Sundown, but am open to other simple, non-flashy amps as well...can't hurt to offer up. SAZ-2000D would be optimal. Budget: $250 down payment + up to $100 per week. Condition: Mint or new. Time Frame (if applicable): Whenever

It's 20ft long, can't read?

Different kind of pipe, and it's 20ft long so that'd be nearly $6 per foot before shipping. Not to mention you'd have to buy 20ft of it for it to be $6 per ft.

I haven't used a port under 24" long in I don't know how long.

Get a used 3kw at 1ohm amp for $400-500 if you're on a tight budget.

Yes.

This is a box for Erik Jenkins of Jenkins Motorsports for a pair of Digital Designs 9518's going in the back seat area of a Chevy SS truck. The box is 12ft^3 with a 34hz tuning. The subs will actually be firing forward with the ports firing up. Hopefully he's happy with the results and comes back for more work.

Height times width. The length of the port depends on the opening size, volume of the box, and desired tuning frequency

I was just basing it on layout.

I'm confused as to what you're actually wanting out of this thread. The ideas with multiple ports and of different sizes is just not a good idea. The last one is an acceptable situation. Single port > multiple ports.

How much power will you be running to it? 3.5ft^3 with a 33hz tuning is a pretty standard box. A pair of 6" ports would be great, but they would have to be pretty long. A single 6" aero is the absolute bare minimum.

It's not goig to make that big of a difference. You'd be better off building a new box or adding more power to your current situation. Bigger box is probably your best bet.

I'd imagine it would be in the .25ft^3 area.

Unless you're going to give them 2x rated power, there's no need to go with a box that small(I wouldn't do it anyways). There are no indications that the subs are optimal in a 1.25ft^3 box. Unless DC subs have found a way to defy the laws of the t/s parameters they post on their site, those subs would much rather be in 2ft^3 each with a low 30's tuning. With a mid level Qts and a Vas over 2.5ft^3, these are not small box subs. Especially since you're using a 500 watt amp, you can't afford to have these in a small box. Ever notice how DC raised the recommended volumes for nearly all of their models?

It'd actually be a little smaller and tuned a little higher since you didn't account for sub displacement...like 2.82ft^3 with a tuning just under 38hz.

I see you're using that Fountek fullrange drivers...what tweets did you pair them with?