Which would be better ?

[bgt2u]

I have been wondering, which would be better, 4 12's in a sealed enclosure, or 2 15's, in a ported enclosure? Assuming the subwoofers, and amp(s) were the same brand, and models for both examples? What are your thoughts?

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[Jeffdachef 5,000+ posts]

4 12s in ported. 15s if you want to save cash. Do you even have the space for a custom ported box?

 

[bgt2u]

Yes, I have 8.3 cu ft. I could not do 4 12's in a ported box, as I do not have space for that. That is why, I was saying 4 12's in a sealed box, or 2 15's ported.

 

[Jeffdachef 5,000+ posts]

Yes, I have 8.3 cu ft. I could not do 4 12's in a ported box, as I do not have space for that. That is why, I was saying 4 12's in a sealed box, or 2 15's ported.

8.3 gross or net?

 

[massivespl]

2 15s ported for sure.

 

[bgt2u]

Jeff, You lost me on that.....I just know that the total cubic feet of usable space that I available inside an enclosure, is 8.3 cu ft total. I actually had 9.96 ft, but I figured in the difference, using .750" MDF, which brought the space to 8.3.

 

[massivespl]

Then u have about 8cubes after displacement. U could get away with running 4 12s ported. When subs are in a common chamber box u can get away with alittle less airspace. But there are lots of 12s that will do fine on 2cubes each.

 

[Jeffdachef 5,000+ posts]

Jeff, You lost me on that.....I just know that the total cubic feet of usable space that I available inside an enclosure, is 8.3 cu ft total. I actually had 9.96 ft, but I figured in the difference, using .750" MDF, which brought the space to 8.3.

Give me the max dimensions man. In depth x width x height

 

[bgt2u]

So, you are saying all 4 subs in the same box, would actually require less combined airspace than 4 subs each with seperate chambers would.....interesting, I did not realize that. In your opinion, on a percentage basis, how much less airspace do you think would be required, by putting them all in one shared chamber?

 

[Jeffdachef 5,000+ posts]

So, you are saying all 4 subs in the same box, would actually require less combined airspace than 4 subs each with seperate chambers would.....interesting, I did not realize that. In your opinion, on a percentage basis, how much less airspace do you think would be required, by putting them all in one shared chamber?

Download torres box calculator and know for sure.

 

[bgt2u]

The enclosure dimensions are: 50" wide x 20" high x 17.5" deep....I would love to download torres, however, I only have Android, no Windows.

 

[Jeffdachef 5,000+ posts]

The enclosure dimensions are: 50" wide x 20" high x 17.5" deep....I would love to download torres, however, I only have Android, no Windows.

Youll be around 7 to 7.4 cubic feet after sub and port displacement with aero ports, and even less with slot. Two 15s or triple 12s Ported. You can also do an 18 to save money.

 

[bgt2u]

Great! Thank you very much for all of your help. I have decided that I will go with two 15's, and aero ports. Two 15's will give me more surface area than one 18, or three 12's, and I would not have enough cubic feet for two 18's, so two 15's it is! Thanks again.

 

[Boomin_tahoe 5,000+ posts]

Which 15's?

 

[bgt2u]

I am not sure on the subwoofer yet. I probably will go with Sundown HDS series. Right now, I have two VM Audio SRW15'S. I got them for free, and they are new. I don't know much about them. I figure, I will just use those, until they blow up, then get some Sundowns, or SoundQubeds. For amps, I am considering: Audiopipe AP1500.1D, Planet Audio AC5000.1D, Soundstream DTR3400, or MB Quart..unknown model. I am on a limited budget (isn't everyone), and don't want to spend more than $500 for an amp. I actually would like to keep the cost to around $300.00 if possible. By the way, this is going in my little Suzuki X-90 (a two seater version on a Suzuki Sidekick/Geo Tracker). The car already has four 8" three ways fowered by a Kicker 4ch amp (one 8, in each door, and two in the rear deck lid). Let me know what you think.