[Jl audio... box]

That program is step 2 in the design process.

Step 1 is using a WinISD, BassBox Pro, etc mocking up a decent response.

winisd and bbp dont take into account vehicle response, so their graphs are completely irrelevant unless you put a mic in your car and measured sweeps.

Ah dangit, thanks for catching that.. I had to modify some stuff.. I'm .5 from recommended.. over.. think it's going to be alright?

looks good man. i dont know why everyone is telling you to put 100sqin of port per cube. its a 500 watt sub for god sakes.

Bass Box Pro allows you to load Car/Room dynamics which emulate each environment..

If nothing more these tools facilitate a great way to determine group delay and cone excursion at certain freqs given an enclosure net internal volume.

[Jl audio... box]

That program is step 2 in the design process.

Step 1 is using a WinISD, BassBox Pro, etc mocking up a decent response.

[American Bass Phantom series any good?]

The Phantom series by American Bass uses the Sound Magus board/internals which is the same guts as what Massive Audio Nano series uses.

AB PH2500 = Massive Audio N3

AB PH4000 = Massive Audio N4

On a positive note, the AB variant seems to be obtainable for a cheaper price then their Massive Audio counterpart.

The PH4000 has been compared against the AQ2200 and said to be "louder" here --> http://www.stevemeadedesigns.com/board/topic/119726-american-bass-phantom-series-amps/page__view__findpost__p__1686307

Here is a formal review by PASMAG on it's little brother (PH2500)

http://www.pasmag.com/car-audio/reports/1796-test-report-american-bass-ph-2500-md

I've compiled all of this information because I'm researching new amps too and had this amp on my shortlist.

[Fiberglassing inside of box...]

So we're saying that fiberglass is stronger then MDF?

If this is a concern why not built it out of birch? More internal bracing?

[DC Price Reqest Thread]

Price on a 1.2K / 43035