planning new system

I have a 2012 mustang gt, and have a (new model) RE Audio XXX 12.D2, with a Sound Stream DTR 3400. (2200rms @ 1ohm). The alternator is getting sent to MechMan to get redone to 220amp version, and I am doing the Big 3.  I am going to keep the factory stereo as I like the microsoft sync and the stereo appearance.  I have a audio control DQX that is going in with this.  I removed the back seat and am doing a half wall type setup and was planning on aiming the sub straight up on one side and a slot port on the other.  I was wondering what info you guys could offer me as far as port dimensions. I plan on the top baffle being 2" thick and the sides 1.25". with those dimensions before port and mag displacement I have about 4.4 cu.ft.  Any opinions on sub/port placement??  By the way this is for daily use but if a show came alont I would like to enter it to see what it would do.

personally i would face the sub front and center and port on the front passenger side. to get the full benefit of having a sub like that i would suggest that you tune the port low, like close to 30Hz but not under. this will take away from overall loudness a little bit but it will sound better for most music especially hip hop/rap.

what will you be doing for the rest of your system? are you keeping the speakers and amp stock? any particular reason you will be using a soundstream tower amp? its a good amp but they are very strange to mount because of how they are shaped.

also, even though you are upgrading the alternator i would still recommend a better battery under the hood and an extra battery in the trunk. fords usually have a decent electrical system stock but im not sure about newer fords so it might still need a little help.

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For now i am gonna keep the stock speakers but upgrade later. I got a good deal on the amp. I was gonna mount the amp then the processor centered in front of it. What about center sub in the front with slot port on either side.

Also i was thinking about just doing a battery under the hood do you think it would be necessary for another in the trunk.

Upgrade the Big 3 and think about an HO Alt before you start thinking about second batteries.

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Those both are covered.


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Then rock and roll.  The only reason you might want a second battery is if you plan to operate the system with the engine off.

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Yeah thats what i figured. With me running at 2000-2200 rms i think the 220 amp alternator would be fine.

i would still recommend a better battery because the alternator wont give you its full output anywhere near idle, it will probably max out around 3000-4000 rpm but at idle the output will probably be closer to 80 amps.

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Mechman emailed me that it produced 100 amps at 650rpm, 140 amps at 800, and full by 1800. But i was still looking into a battery to go under the hood

ok well then you have a good alternator. but that isnt usually the case with H.O. alternators, you just have to be careful.

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Alright thanks for looking out. I am still gonna get a battery for under the hood. What would you recommend? A power master a xs d975 or a xs d 1200 will fit under the hood.