So, I built my box for 6-15" Kicker L7.... HELP

[ShadeTreeMechanic]

How do you have them wired ( ohms) and what amp? Verify that you don't have any wired backwards.

[Haro Christian]

How do you have them wired ( ohms) and what amp? Verify that you don't have any wired backwards.

The woofers are dual 4ohm.

I have them wired, temporarily, to 2 Massive Audio N4 amps at about 2.6 ohms

Amp Specs:

RMS: 2000w x 1

PEAK Power: 4000w x 1

RMS @ 2ohms 1000w x 1

Min Impedance: 1ohm

[Haro Christian]

im showing 31cuft for that box. that seems kind big to me for 6 15's. You are at like 5cubes per sub.

They have a TON of cone area for 15s being that they're square

@OP how much air a port moves is greatly dependent on the power applied and frequency played. What do you believe the problem to be?

Do you have any odd loading issues?

I think its getting enough power, I am using a Massive N4 amp running at about 2.6ohms.

[Haro Christian]

I'd suggest verifying your tuning frequency in vehicle.

You can find your real tuning frequency by playing sine wave tones at moderate volume (there are tone generator apps for your phone). At your tuning frequency your cones will move the least and movement will increase if you increase or decrease the frequency from that point.

I will try that later when I get home.

[Haro Christian]

You missed to place a 2 in the "# of common walls" field, check your tuning after modifying that field.

After adding the 2, Torres shows a tuning frequency of 30.67Hz, however, the subs are facing up port back, when I check the Sup Upward box, it shows a freq of 31.16Hz.

[Joe X]

If you take away the double layer baffle you won't see any difference in tuning changing the subs aim direction, still as you can see you are tuned pretty low, you could still measure it but you are not likely to find you are tuned to 50Hz. I would recommend checking that all amps and subs are wired in phase and your amps are gain matched.

[RooTxBeeR]

Your subs want nearly 7500 watts. You are barely feeding them 2k. That might be a problem.

[Haro Christian]

I'd suggest verifying your tuning frequency in vehicle.

You can find your real tuning frequency by playing sine wave tones at moderate volume (there are tone generator apps for your phone). At your tuning frequency your cones will move the least and movement will increase if you increase or decrease the frequency from that point.

i did that just now, looks like im in the 100's wtf. port not deep enough? its only 10.5" deep. i been on youtube and see the ports similar in height and width but deeper.

UPDATE

I have three amps running at 1ohm per 2 subs.

Massive Audio N4's are the brand and models

still sounds like crap

[Guest]

Your subs want nearly 7500 watts. You are barely feeding them 2k. That might be a problem.

this.

and the tuning advice in this thread is something to be concerned about maybe have a shop build something for you since these subs are not cheap

also I noticed your baffle is very thin for subs that heavy

I would do at least another 2 layers

your bracing looks like it needs some help

Its hard to say without being there but I would guess your port walls are flexing like crazy as well which could easily result in your poop sound

[Miguels]

those kickers are only good to 750 watts in a ported box. 3 subs wired in series/parallel ends up to be 2.67 ohm so you're lucky if your subs are seeing 300 watts each at that ohm load

get to 7k amps if youre going to wire at that load or wire all six subs to 1.3 ohms and strap the amps if they have that option