posted
now i want everyone to post that thinks this statement is correct:
2 subs with 300wrms each would in theory be 3db louder then 1 of the exact same sub with 600wrms
Posts: 3421 | From: Owosso MI, USA | Registered: Apr 2001
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quote:Originally posted by kan3: now i want everyone to post that thinks this statement is correct:
2 subs with 300wrms each would in theory be 3db louder then 1 of the exact same sub with 600wrms
My math tells me no. They would be the same, theoretically. Theoretically doubling cone area gives you +3db. Doubling power gives you +3db. Only doing one or the other will give you the same results, theoretically.
quote:Originally posted by kan3: now i want everyone to post that thinks this statement is correct:
2 subs with 300wrms each would in theory be 3db louder then 1 of the exact same sub with 600wrms
My math tells me no. They would be the same, theoretically. Theoretically doubling cone area gives you +3db. Doubling power gives you +3db. Only doing one or the other will give you the same results, theoretically.
but you aren't doubling the power, the system power is the same through both equations
Posts: 3421 | From: Owosso MI, USA | Registered: Apr 2001
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Disclaimer: Thoughts and ideas expressed are soley of the opinion of the poster and do not reflect upon actual results. Posts: 464 | From: SFV,CALI | Registered: May 2002
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quote:Originally posted by kan3: now i want everyone to post that thinks this statement is correct:
2 subs with 300wrms each would in theory be 3db louder then 1 of the exact same sub with 600wrms
My math tells me no. They would be the same, theoretically. Theoretically doubling cone area gives you +3db. Doubling power gives you +3db. Only doing one or the other will give you the same results, theoretically.
but you aren't doubling the power, the system power is the same through both equations
1 sub with 300w gives half the output that the 1 with 600w will put out. Add another sub with 300w driving it to give you +3db to match the single sub with double power.
quote:Originally posted by kan3: now i want everyone to post that thinks this statement is correct:
2 subs with 300wrms each would in theory be 3db louder then 1 of the exact same sub with 600wrms
My math tells me no. They would be the same, theoretically. Theoretically doubling cone area gives you +3db. Doubling power gives you +3db. Only doing one or the other will give you the same results, theoretically.
but you aren't doubling the power, the system power is the same through both equations
1 sub with 300w gives half the output that the 1 with 600w will put out. Add another sub with 300w driving it to give you +3db to match the single sub with double power.
you just said it yourself
1 sub with 300w is -3db to the 1 sub with 600w
now you add another sub with another 300wrms
so what does that give you?
Posts: 3421 | From: Owosso MI, USA | Registered: Apr 2001
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posted
i thought that doubling the cone area with the same power no matter what would add 3db... but;
"1 sub with 300w is -3db to the 1 sub with 600w now you add another sub with another 300wrms so what does that give you?"
that makes sense too...
wouldn't it actually be more complex however.. if say sub a reaches full x-max with 600 watts does that mean it only reaches half x-max with 300 watts? i thought db's are pretty closely related to how much air a sub moves.. and how much air a sub moves is related to x-max and the sd (cone area)..
so now i am confusing myself... but for everything i have understood so far either doubling the cone area (adding another sub) or porting a box will both give +3 db with the same amount of power..
i guess none of that matters.. becasue it isn't a perfect world, and there are way too many variables, so all of these theories matter, but only to a certain extent.. it is testing and trial and error that really get the results you want.
blaupunkt cassette cdt classic 6.5 comps us acoustics smallest cheapest amp kicker s 12 c (round) solobarics in a box way too big and tuned way too low for a car.. Posts: 512 | From: Springfield, OH - Mishawaka, IN - DC - Orlando, FL | Registered: Jan 2002
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posted
i was doing 151's with 4 12's on 1 jbl 1200.1 and added 4 more 12's of the same series to that same amp, so just cone area increase and went to 158.
Posts: 8921 | From: over yonder | Registered: May 2001
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