ch1zy

Ok here is the deal, want to get all your advice. I have a 2011 sport package, NON-bose model.

I currently have Hertz Hi energy component speakers, Pioneer Avic z130bt and I'm running them off a MTX 3404 4 channel amp. The amp's wattage bridged is 150x2 and right now its running un bridged at 75x4 and I'm only using 2 of the channels which is fine for just the speakers in the car with no subs. The amp is hidden under the floor in the trunk, behined the passenger tail light where the styrofoam to the right of the spare tire is. We romoved the styrofoam and built an amp rack, the amp barley fits. I'm going to add subwoofers to the car and when I do I will have to bridge the amp to get more power to blend with the subs I think.

I am between two choices and either way I have a JL Audio 500/1 mono block amp I'm using for the subs. Here are my choices

1.) Magic Box from Wicked CAS with 13TW5 woofer in it and I'm going to install the 500/1 amp in the floor of the trunk closer to the head rests where the styrofoam is( the space between the stut towers and the stabalizing bar).

2.) A custom box with 2 8w3's in it where the styrofoam is in the floor of the trunk closer to the head rests, ( the space between the strut towers and the stabalizing bar) and a custom amp rack in the spare tire that will have slack and will be removable with out unpluging anything so the spare can come out.

I have a custom car audio shop doing this for me, they did a great job on the speakers, head unit, back up cam, and amp install for the first part of the stereo.

So the question is, what do you think will be better, 1 13TW5 or 2 8W3's? Both would run off a 500/1 JL audio mono block amp. Make any suggestions about where to install the amp or better ways to do anything. I'm running 2 amps because I already had them and I'm trying to save a little money. If I had the money and didn't already have the amps I would buy a JL HD 900/5 so don't suggest it because I know it would be easier haha but I'm saving about 750 dollars using the amsp I already have.

MAIN REASON I'M LEANING TOWARDS THE 2 EIGHT INCH SUBS AND WHY I'M SECOND GUESSING MY DECISION

1.) Magic box will take 3 weeks to build, he does not have any in stock, and I can do the 8 inch subs monday.

2.) I think the 8 inch subs will have better sound quality but will they be as loud as the 13 inch sub?

3.) Will the 8 inch subs hit low enough bass?

4.) I'm not looking to shread the car apart with bass, but I do like loud music and I want good sound quality and I want it all hidden with no trunk space loss.