3 ohm load
03-26-2009, 01:41 PM
#1
3 ohm load
just curious, is it possible?
say if you had a 2 ohm sub and a 4 ohm sub wired into a mono amp. since a mono amp would bridge the two internally (what i learned from one of my other threads), if they were both 4 ohms then the final load would be 2 ohms, so if the amp is 2 ohm stable, and you had one 4 ohm and one 2 ohm, or say an svc 4 ohm and dvc 4 ohm wired to 2 ohms, my calculations say that the final load the amp would see is 3 ohms. is that correct, and is it possible? i figure it is because 3 ohms is more than 2 so it should be safe
i'm only asking because i have a dvc and a svc sub and from what i gather they're giving a final load of 3 ohms to the amp, which means i'm safe, right?
say if you had a 2 ohm sub and a 4 ohm sub wired into a mono amp. since a mono amp would bridge the two internally (what i learned from one of my other threads), if they were both 4 ohms then the final load would be 2 ohms, so if the amp is 2 ohm stable, and you had one 4 ohm and one 2 ohm, or say an svc 4 ohm and dvc 4 ohm wired to 2 ohms, my calculations say that the final load the amp would see is 3 ohms. is that correct, and is it possible? i figure it is because 3 ohms is more than 2 so it should be safe
i'm only asking because i have a dvc and a svc sub and from what i gather they're giving a final load of 3 ohms to the amp, which means i'm safe, right?
03-26-2009, 01:53 PM
#2
lol freshy
you would get 1.333 ohm if you wired it that way.
the formula is,
1/[(1/ohm)+(1/ohm)]
so you'd get 1/[(1/4)+(1/2)] = 1/0.75 = 1.333
the way you'd wanna wire that is connecting all 3 coils together.
you would get 1.333 ohm if you wired it that way.
the formula is,
1/[(1/ohm)+(1/ohm)]
so you'd get 1/[(1/4)+(1/2)] = 1/0.75 = 1.333
the way you'd wanna wire that is connecting all 3 coils together.
03-26-2009, 02:19 PM
#4
yah for sure.
its really easy, just take all 3 coils and hook them up together. your amp will work at 1.333 ohm, we tried the same amp at 0.5 ohm and it worked.....for about a month of solid abuse. at 1.333 ohm it shouldnt have any problems.
its really easy, just take all 3 coils and hook them up together. your amp will work at 1.333 ohm, we tried the same amp at 0.5 ohm and it worked.....for about a month of solid abuse. at 1.333 ohm it shouldnt have any problems.
03-26-2009, 02:46 PM
#5
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since a mono amp would bridge the two internally
03-26-2009, 08:54 PM
#6
There is also the problem of different power to subs in a common airspace.....even though the 3 coils will divide the electrical power evenly, if 2 of the coils are in 1 driver it will get twice the power of the other one and create enough new problems that you don't want to deal with....even if they are in 2 separate chambers it could still sound like crap.......
03-27-2009, 09:26 PM
#8
Alright, I'll bite.....why not?
Everything I've ever read on this issue says you simply don't do it.....the difference in response between the 2 drivers should be audible at any power level....if the box is in a trunk it would be harder to hear, but I still think he would be better off selling one or the other sub and getting a matched set......
You can explain this to me on the 4th if you want....
Everything I've ever read on this issue says you simply don't do it.....the difference in response between the 2 drivers should be audible at any power level....if the box is in a trunk it would be harder to hear, but I still think he would be better off selling one or the other sub and getting a matched set......
You can explain this to me on the 4th if you want....
