Single 15 or Dual sealed?

[PapaGeno21 10+ year member]

Here is my question. Pretty simple but I feel I am going to get a lot of opinions.

I would say use the FI BL as the hypothetical sub as that is the one I am waiting on to show up and use in the ported enclosure I built, but they don't recommend it sealed so I don't think that is a good option for that.

SO

(Insert random 15" sub here)

1 of them ported to whatever the sub wants optimum box

OR

2 of them sealed.

What would be louder?

I would be interested about the power differences. Like, lets say the single 15 had 3500 watts and the sealed 15's are splitting the same power. I don't think I could afford to do something along the lines of 3K to each sub so I am going with the idea that I could afford to do one big amp on a kick *** 15, or one big amp on two decent 15's. And it is cheaper to get two subs rated for 1500 than two amps.

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[hispls 5,000+ posts]

Have you considered a good pair of 12's ported?

 

[PapaGeno21 10+ year member]

I know I can do 12's ported in a smaller box than two 15's sealed and most likely have more output. BUT for the sake of argument I would like to know what would be better with my original question.

Thanks!

 

[slvrado28z 10+ year member]

well it says u ordered a fi bl allready y u asking questions..thanks

 

[PapaGeno21 10+ year member]

Am I not allowed to ask questions?

I did order the FI, and I am going to run it. I just want to know the answer to what I asked as I saw a build with a wall of 6 sealed in an acura and it looked pretty sweet.

 

[mlstrass 5,000+ posts]

Run your BL for a while, then buy 2 15" Q's and run them sealed. Tell us which set up is louder.

That is the ONLY way to know what will be louder in YOUR vehicle....

 

[PapaGeno21 10+ year member]

That is what I was thinking about to be honest. I hear the Q's sound fantastic in general so I would assume they would be super SQ oriented in a sealed box.

BUT some dude just did a plot out on I think winsid is the program and the SP4 single 15" on 3500 ported was louder than two 15" q's splitting 3500 watts sealed.

 

[mlstrass 5,000+ posts]

That is what I was thinking about to be honest. I hear the Q's sound fantastic in general so I would assume they would be super SQ oriented in a sealed box.
BUT some dude just did a plot out on I think winsid is the program and the SP4 single 15" on 3500 ported was louder than two 15" q's splitting 3500 watts sealed.

Comparing apples to oranges...3" VC subs vs a 4" VC sub.

I ran a 15" Q ported in the wife's car for several years. Honestly wasn't impressed by the SQ at all, very bottom heavy/boomy. Fine for rap, but metal and other music I would end up dialing it way back...

 

[PapaGeno21 10+ year member]

I do understand a 4" vs 3" is a difference but the fact is if I do a single 15 on 3500 it is going to be the SP4, where as if I did two 15's sealed they would be lower model subs.

I should have the BL hooked up next weekend and we will see. Got my tracking number for it yesterday and it should be at my house Friday! WOO