Sealed Box dB??

[Snowman3232 10+ year member]

What would be an achievable dB for say two (good) 15's on about 2k watts in a sealed box? I'm really curious. My new build is looking to hit around 145 on music and I'm trying to understand how much louder (dB wise) it's gonna be than my 15's I have now in a sealed box.

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[Bettr n' Revrse 5,000+ posts]

Depending on tuning ported could be and should be much louder...

 

[Flastrongman 10+ year member]

Impossible to know for sure, but considering vehicle, power and subs, you should be in the low 140's with a sealed box. A ported box will on average give a 3db gain give or take. A really good ported box could give you a 6db gain or more.

 

[treadburner 10+ year member]

u have one of the easiest cars to get loud

2 15's ported on 2k SHOULD do 145's all day

but it mostly has to do with the box

 

[Snowman3232 10+ year member]

Impossible to know for sure, but considering vehicle, power and subs, you should be in the low 140's with a sealed box. A ported box will on average give a 3db gain give or take. A really good ported box could give you a 6db gain or more.

140's thats interesting. Thanks for the info

 

[IonRL205 10+ year member]

Any reason why you are going sealed?

 

[tc300 10+ year member]

i heard 2 Q 18's sealed in a blazer like yours... it was nasty!! to the breath outa ya.

and sounded AWSOME form r@b to rock to rap!

 

[LosIsATool 5,000+ posts]

u have one of the easiest cars to get loud2 15's ported on 2k SHOULD do 145's all day

but it mostly has to do with the box

I dont see 145s. Low 140s yes

 

[RAM_Designs 5,000+ posts]

I dont see 145s. Low 140s yes

I've seen low 50's out of two 15's and two 1200 watts amps in an old Blazer. It's almost hard not to get in the high 40's with a pair of 15's and 2kw in a Blazer.

 

[LosIsATool 5,000+ posts]

I've seen low 50's out of two 15's and two 1200 watts amps in an old Blazer. It's almost hard not to get in the high 40's with a pair of 15's and 2kw in a Blazer.

Sealed?

 

[Flastrongman 10+ year member]

x2 My Jimmy did highs 140's with 2 12's.

 

[RAM_Designs 5,000+ posts]

Sealed?

Ported.

 

[LosIsATool 5,000+ posts]

Ported.

This guy is asking about sealed. I know ported will if tuned to do so

 

[RAM_Designs 5,000+ posts]

This guy is asking about sealed. I know ported will if tuned to do so

Well you quoted a guy saying two 15's ported on 2k, so I figured you were responding to that situation.

 

[Flastrongman 10+ year member]

no, he's asking what his now sealed box should be hitting to compare what it might do when he gets his ported box.