Ive been thinking...

[avs20 10+ year member]

If you run an amp to each coil on a sub...let's say a dual 4...the sub is wired at 4 ohms to each amp correct? Since they are not wired in parallel or series, they are hooked up like a svc..the impedance doesnt change..correct?

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[supa_c 5,000+ posts]

Why did you ask this ?

 

[waNtsumBuMP 10+ year member]

there is no such thing as a stupid question, but dam there is such thing as a dumb assumtion... so if you had two SVC 4 ohm subs, and you hooked them up separetly whut ohm load would it be.... thats basically all your doing...

 

[avs20 10+ year member]

Reason I even asked this is because a friend of mine is arguing with me about it. I know Im right, but I need some replies so I can show him Im not the only one who thinks that way

 

[squeak9798 5,000+ posts]

Yes, you are right. Each amp would see 4ohms nominally. It's not a "thinks" one way or the other; it either is or it isn't. And if your friend is disagreeing with you, he isn't right.

 

[goinpro 10+ year member]

ya i asked about this a while bac...but becareful if you do this cause all the gains must be set exactly the same or it will most likely **** the sub up

 

[monte_carlo97 10+ year member]

yabecareful if you do this cause all the gains must be set exactly the same or it will most likely **** the sub up

yea you are right. There is a good chance that the subs will get messed up

 

[Scarenius 10+ year member]

So then it's possible to run 2 channels from a single amp to a DVC sub without any ill side effects? (Assuming this amp has only one gain setting)

More importantly, how would this be any different from bridging the amp and doing it the old fashion way?

 

[squeak9798 5,000+ posts]

So then it's possible to run 2 channels from a single amp to a DVC sub without any ill side effects? (Assuming this amp has only one gain setting)

Yup. Even if the signals are different (say the amp does have two gains and they aren't set right), nothing bad will happen.

More importantly, how would this be any different from bridging the amp and doing it the old fashion way?

Depends on a lot of things. There may be nothing different. But, for example, my old Eclipse 34230 was only stable to 4ohm/channel, and could not be bridged. So, there is the perfect opportunity to run one channel per coil on a dual 4ohm/coil sub. Or, if you have a dual 4ohm/coil sub and a 2-channel amp that can't be bridged to 2ohm, you may get more power out of it by running 1 coil per channel instead of running the amp bridged at 8ohm

 

[rx7vert 10+ year member]

I was running one of my type r's on a 2 channel amp with one channel per coil and it did fine. still in my car 4 months later.... different amp though...

 

[avs20 10+ year member]

I currently run one sub off two amps. Not hard to do..just set both gains with a DMM at the same voltage..and you will be perfectly fine.