4 Subs 750 Watts Each Or 3 Subs 1000 Watts Each

[denalilvr 10+ year member]

im not going or talking about wow factor where 4 would look more kool then 3 im strictly talking in being louder would 3 off of 1000 watts be louder or 4 off of 750 watts each?

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[Skip01 5,000+ posts]

hmmm.....id say 4 subs with same power would be louder than 3

 

[mepratt1234@cha 10+ year member]

If they were the same subs, the four would have more surface area.

 

[perfecxionX 10+ year member]

If they were the same subs, the four would have more surface area.

o really? four subs would be more cone area than 3?

i would have never guessed

 

[mikey7182 10+ year member]

o really? four subs would be more cone area than 3?

i would have never guessed

I think he's saying if it were 4 of the same subs as the 3... 3 15" subs are going to have more surface area than 4 10" subs, so he was placing the condition on it that they were the same brand/size. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[DD_Dave 10+ year member]

o really? four subs would be more cone area than 3?

i would have never guessed

you learn something new everyday //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Jared530 10+ year member]

2 subs with 2000w each?

Save the extra ~400-500$ on the 2 subs and invest it into a bigger amp/beefier subs

 

[helotaxi 5,000+ posts]

More cone area with a little less power will mean less power compression and better use of that power.

 

[denalilvr 10+ year member]

More cone area with a little less power will mean less power compression and better use of that power.

can you explain this a little more if you dont mind

 

[tc3k101 5,000+ posts]

can you explain this a little more if you dont mind

x2

 

[helotaxi 5,000+ posts]

More power means more heat. More heat means more resistance which means less power actually going to the sub.

Assuming that the box is built right, the advantage is going to go to the setup with the most cone area for a daily system anyway.

 

[denalilvr 10+ year member]

thanx for explaining..

 

[1LOWCHIEF 10+ year member]

Interesting discussion.

I hate to sound like a broken record, but "back in the day" when I was really into car audio in the late 80's and early 90's the general rule for increasing the bass in your system went a little something like this :

a 3 Db increase meant that the bass/volume would be twice as loud. However, to achieve that you either needed to double the wattage into the same number of woofers or double the amount of woofers while keeping the same wattage into each one.

OR,

a system with 2 12's with 200 watts going into each 12 would either need to :

a) increase wattage to 400 watts per (2) 12's; or

b) go with 4 12's with 200 watts each.

However, with the question posed as to the difference between 3 and 4 woofers with total power equal between them, I would have to give a slight edge to the 4 woofers just due to the fact there is more cone area to move air... but I'm willing to bet that the volume/quality would probably be negligible.

 

[helotaxi 5,000+ posts]

a 3 Db increase meant that the bass/volume would be twice as loud. However, to achieve that you either needed to double the wattage into the same number of woofers or double the amount of woofers while keeping the same wattage into each one.

You're off on a couple things here. First 3dB is twice the acoustic power, not twice as loud since loudness is a function of aural perception. Second, the two ways to get a 3bD increase in output are to double the power OR double the cone area with the same total power (so half the amount of power to each woofer). If you double cone area and double total power you get a theoretical increase of 6dB. This is all theory, in reality, you'll never get those gains because of power compression and cancellation.

 

[mcsoul 10+ year member]

I think it depend on the woofers your choosing. With 3000Watts (Assuming 1 ohm here) , if you want loud, go with 4 15" type R's ported. 3 JL 13w7s would sound different, maybe even better and just be a few db off. It depends on what you want.

I can't think of woofers from the same company, that are from the same line that would offer an amp the same impedance wether you choose 3 of them or 4 of them. Then it comes down to 2 distinct setups. Maybe you had 2 or three options in mind; what were they?