(4) 15 BTL or (2) 18 BTL

[str8tchillin69 0]

Hey Guys

I have a 03 Yukon Denali that i would like to build a system for. I'm debating on whether four 15 BTL will be better ground pounder then two 18 BTL? I do know that power has one thing to do with it and i will be running two Sundown Audio SAZ-3500D, i will have a big 3, with 2 Alts, and 2-3 Powermaster 3100 and a smaller Powermaster up front. All the subs will be fully loaded, and as far as a box i will have Fisher Customs make a box or Pound that Sound. I am open for all suggesting's to change out any thing or add any thing.

Thanks Guys...

[Matt2105 2]

Hey Guys

I have a 03 Yukon Denali that i would like to build a system for. I'm debating on whether four 15 BTL will be better ground pounder then two 18 BTL? I do know that power has one thing to do with it and i will be running two Sundown Audio SAZ-3500D, i will have a big 3, with 2 Alts, and 2-3 Powermaster 3100 and a smaller Powermaster up front. All the subs will be fully loaded, and as far as a box i will have Fisher Customs make a box or Pound that Sound. I am open for all suggesting's to change out any thing or add any thing.

Thanks Guys...

Umm with only 7k watts, I'd just run the two 18s.

[str8tchillin69 0]

I would get more amps if i need them for the four 15s thats not a problem...

[SpeakerBoy 64]

Hey Guys

I have a 03 Yukon Denali that i would like to build a system for. I'm debating on whether four 15 BTL will be better ground pounder then two 18 BTL? I do know that power has one thing to do with it and i will be running two Sundown Audio SAZ-3500D, i will have a big 3, with 2 Alts, and 2-3 Powermaster 3100 and a smaller Powermaster up front. All the subs will be fully loaded, and as far as a box i will have Fisher Customs make a box or Pound that Sound. I am open for all suggesting's to change out any thing or add any thing.

Thanks Guys...

Umm with only 7k watts, I'd just run the two 18s.

x2

Edited May 21, 2009 by DeepSubBoy

[sound=vibration 34]

or you could do the four and have room to upgrade that is what i would do

[str8tchillin69 0]

or you could do the four and have room to upgrade that is what i would do

You would do four 18s and upgrade later?

[BKOLFO4 29]

I have run (4) 15's vs. (2) 18's with MT's in a wall behind the second row of seats in a suburban. Both setups in roughly 12 ft^3 tuned to 35 Hz. They metered within .2 dB of each other, but the (4) 15's peaked a few Hz lower and were much louder listening to music. Everyone who heard both setups could not believe they metered the same.

Also - 7000 watts is MORE THAN ENOUGH to run (4) 15" BTL's. They will take more, but they will be fine with that much power. I have run them on as little as 900 watts each and they sound great!

Brian

[str8tchillin69 0]

I have run (4) 15's vs. (2) 18's with MT's in a wall behind the second row of seats in a suburban. Both setups in roughly 12 ft^3 tuned to 35 Hz. They metered within .2 dB of each other, but the (4) 15's peaked a few Hz lower and were much louder listening to music. Everyone who heard both setups could not believe they metered the same.

Also - 7000 watts is MORE THAN ENOUGH to run (4) 15" BTL's. They will take more, but they will be fine with that much power. I have run them on as little as 900 watts each and they sound great!

Brian

so if i decide to do the four 15s and add another two saz-3500. It would be about $200 difference between the 4 18s and 15s. Would it be better to do four 18s instead of the 15s or would the 15s still be a few hz lower for music? Would it work better in a wall or box? I tryed searching it before i asked and couldnt find witch one would be better... so for a rough estimate that i came up with im looking at a easy 15,000 to 20,000 for all that sound deadner and the rest of audio and video products.

Edited May 21, 2009 by str8tchillin69

[shizzzon 461]

I hope u dont live around KY because i'm bout to do a wall with 4 15s and i dont want to be put to shame,

If money is no object and since u know what it would cost, let me tell u my experience in researchin-

4 15s have more cone area and when comparing 4 15s to 2 18s in the same class, the 4 15s will always be louder in the proper enclosure.

For competition, you can bassrace with 4 15s a lot longer without worrying about power compression as much as 2 18s.

For competition, if burping, it's a toss up if both setups were ran on the same amount of power but if you are gonna add extra amps for 4 15s, then burping with 4 15s would be devastating.

You also gotta look at port area. Running that much power on 4 15s, lets say 14,000w, 16cuft NET tuned to 32hz, you gonna need around 200sqin minimum and a length of at least 20".

Ports this big usually take up around 3 cubes inside the box so u would need close to around 20cubes GROSS before you start the box\wall build.

For 4 18s, you are lookin at around 26cubes NET and around 32 cubes GROSS internal.

[str8tchillin69 0]

I hope u dont live around KY because i'm bout to do a wall with 4 15s and i dont want to be put to shame,

If money is no object and since u know what it would cost, let me tell u my experience in researchin-

4 15s have more cone area and when comparing 4 15s to 2 18s in the same class, the 4 15s will always be louder in the proper enclosure.

For competition, you can bassrace with 4 15s a lot longer without worrying about power compression as much as 2 18s.

For competition, if burping, it's a toss up if both setups were ran on the same amount of power but if you are gonna add extra amps for 4 15s, then burping with 4 15s would be devastating.

You also gotta look at port area. Running that much power on 4 15s, lets say 14,000w, 16cuft NET tuned to 32hz, you gonna need around 200sqin minimum and a length of at least 20".

Ports this big usually take up around 3 cubes inside the box so u would need close to around 20cubes GROSS before you start the box\wall build.

For 4 18s, you are lookin at around 26cubes NET and around 32 cubes GROSS internal.

Thanks Shizzzon,

I think so far im going to do 4 18s with 4 saz-3500 and debating on a wall or box. i live in Charlotte, NC... Man this is one tough build i dont wanna put something in there and regret it later.....

[shizzzon 461]

you'll only feel regret if you do not know exactly either what you are doing or if you think something may fail.

All the things you must consider-

Air bags will eliminate the weight restrictions on the vehicle.

Better braking system will allow you to stop better; extra weight slows down braking time.

Having plenty of batteries will keep the voltage up. Do not attempt to charge batteries that are floating almost 1 full volt below maximum charge. This will leave an alternator wide open and depending on hwo many batts there are, it can burn the alt up quick.

If your batteries are low, charge them at home. Alternator is to keep them running, not to be taken by granted that it charges regardless of voltage level.

If building a wall, lay down plastic sheeting throughout the whole vehicle then install the wall. When done, cut out as much of the sheeting as possible. This way if you ever need to tear it down, nothing was ruined in the build process.

[KU40 173]

Hey Guys

I have a 03 Yukon Denali that i would like to build a system for. I'm debating on whether four 15 BTL will be better ground pounder then two 18 BTL? I do know that power has one thing to do with it and i will be running two Sundown Audio SAZ-3500D, i will have a big 3, with 2 Alts, and 2-3 Powermaster 3100 and a smaller Powermaster up front. All the subs will be fully loaded, and as far as a box i will have Fisher Customs make a box or Pound that Sound. I am open for all suggesting's to change out any thing or add any thing.

Thanks Guys...

Umm with only 7k watts, I'd just run the two 18s.

With "just" 7000 watts? How much power do you think these subs need? I'll give you a hint- it's definitely not 3500 apiece. Up at that power range you run into a lot more power compression if you try to dump the extra power into each sub than you would if you spread it over four subs.

So my vote is four.