I'd like some advice on what size subs to get

[Gurileck 10+ year member]

I currently have two 10" MTXs and was planning on getting an 18 JL.

Will that sound alright? I have boxes for the 10's but the 18 doesn't have a box, it is just going to be on a piece of fiberglass. Will that have a massive impact on the sound quaility? Should I try to make a box for it? also, becuase my truck has limited space, the 10s are set facing backwards but the 18 is facing upward. Is that a bad idea?

sorry for all the questions, byt I am a little bit clueless.

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[psych0ticnemes1 5,000+ posts]

definately build your own box for it... in a truck, i would stick with 10's... just add more 10's until the output you want is reached

 

[tRiGgEr 5,000+ posts]

What MTX subs do you have now? What JL 18 are you looking at? And yes every speaker needs a box. Well unless you run it IB, but it has to be designed for that.

 

[Gurileck 10+ year member]

The 18" is the 18w3

and the MTXs are hmmm., you know, I don't even know.

It's for a Cutlass Supreme so my space is somewhat limited. I have emptied out the space where the spare tire goes so I have a recess there but it's a round hole so I'm thinking it's fairly useless.

 

[psych0ticnemes1 5,000+ posts]

18's need atleest 4 cubes i would think... so think of it that way... 4 10"s would be better IMO

 

[iagrdshaka 5,000+ posts]

You dont even know what woofers you're running right now?

 

[Gurileck 10+ year member]

naw, they were like 50 bucks each though, so they're probably one of the lower end models. They don't say on the front and I can't get to the back very easily. Thanks for the advice though guys.

 

[tRiGgEr 5,000+ posts]

18's need atleest 4 cubes i would think... so think of it that way... 4 10"s would be better IMO

Depending on power available and budget.

 

[Gurileck 10+ year member]

4 cubes as in 4 cubic ft right? It seems that that would fit but it would be tight. Does orientation really matter though? Because if it needs to be facing back rather than up, it probably won't fit.

 

[tRiGgEr 5,000+ posts]

Normally facing the rear of the vehicle will yield better responce. And cramming a 18 in there with no regard to proper aiming, enclosure is a bad idea. Think about 2 12's or a 15.