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How to wire up my sub and amp safety?


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gonna sound like crap with the bass boost maxed out.

MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..."

Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through.

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Thanks guys!

I'm curious, so the amp matches what ever ohm rating the sub puts out? For example, when I wire it in series to make the sub 4ohm the amp will run at 4 ohms or is there like a switch?

Also, can any 2ohm sub run at 4 ohms? OR just ones with dual voice coils?

b/c wont the 400rms rating for that sub be at the 2ohm range and not 4ohms?

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Thanks guys!

I'm curious, so the amp matches what ever ohm rating the sub puts out? For example, when I wire it in series to make the sub 4ohm the amp will run at 4 ohms or is there like a switch?

Also, can any 2ohm sub run at 4 ohms? OR just ones with dual voice coils?

b/c wont the 400rms rating for that sub be at the 2ohm range and not 4ohms?

The amp will give out power to whatever you plug into it, it can probably drive a 0.25ohm load for a fraction of a second before it blows, and it can power a 100ohm load (some subwoofers will even reach this load at certain frequencies) but at very reduced power. The amp doesn't know what subs are plugged in, it just sees 4ohms and puts out power, the power varies as the ohm load is increased or decreased (which like I said before happens naturally when playing music) making any switch would be useless.

If it's a 2ohm sub, it can't run at 4ohms because it's a 2ohm sub. now, if you by another 2ohm sub, you can wire them in series and have 4ohms, but you will need a more powerful amp to drive both subs (and wiring them down to 1ohm would be a better idea, unless your amp can't handle 1ohm). And not all DVC subs can do 4ohms, if it's a dual 1ohm it can only be 0.5ohms or 2ohms, a D4 can only do 2ohms or 8ohms etc etc.

You are doing 4ohms bridged, which effectively is the same as the 2 x 200watts because when you bridge an amp, each channel sees half the total load, but because one channel is playing and inverted signal, they add together to create one 400watt signal.

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The amp will give out power to whatever you plug into it, it can probably drive a 0.25ohm load for a fraction of a second before it blows, and it can power a 100ohm load (some subwoofers will even reach this load at certain frequencies) but at very reduced power. The amp doesn't know what subs are plugged in, it just sees 4ohms and puts out power, the power varies as the ohm load is increased or decreased (which like I said before happens naturally when playing music) making any switch would be useless.

If it's a 2ohm sub, it can't run at 4ohms because it's a 2ohm sub. now, if you by another 2ohm sub, you can wire them in series and have 4ohms, but you will need a more powerful amp to drive both subs (and wiring them down to 1ohm would be a better idea, unless your amp can't handle 1ohm). And not all DVC subs can do 4ohms, if it's a dual 1ohm it can only be 0.5ohms or 2ohms, a D4 can only do 2ohms or 8ohms etc etc.

You are doing 4ohms bridged, which effectively is the same as the 2 x 200watts because when you bridge an amp, each channel sees half the total load, but because one channel is playing and inverted signal, they add together to create one 400watt signal.

that all made sense but then how do I get my sub at 4ohms? From the sound of it cant? Its a Diamond D3 12inch. I only have one sub. It is a dual voice coil though.

But from what you said how can I make it work at 4ohms? I know u said wire it in series but isnt that still 2ohms?

I'm kinda confused bc wasnt the plan to wire it in series and get 4ohms and then bridge the amp?

How do I know for sure if mine does that?

Heres a link to the type of sub it is.

http://www.sonicelectronix.com/item_5351_Diamond+Audio+D312D2.html

Edited by Moofs
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that all made sense but then how do I get my sub at 4ohms? From the sound of it cant? Its a Diamond D3 12inch. I only have one sub. It is a dual voice coil though.

But from what you said how can I make it work at 4ohms? I know u said wire it in series but isnt that still 2ohms?

I'm kinda confused bc wasnt the plan to wire it in series and get 4ohms and then bridge the amp?

Your subs are dual 2 ohm eh? wire in series and the ohm loads add 2+2=4 if it's not a dual 2 ohm sub then you can't wire it to 4 ohms. If it's something other than dual 2 ohm, then please tell me and I can tell you what to wire it to.

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

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Your subs are dual 2 ohm eh? wire in series and the ohm loads add 2+2=4 if it's not a dual 2 ohm sub then you can't wire it to 4 ohms. If it's something other than dual 2 ohm, then please tell me and I can tell you what to wire it to.

Here is a link with all the info on it

http://www.sonicelectronix.com/item_5351_Diamond+Audio+D312D2.html

I'm guessing I can do it then, right? I mean it says it's impedance is 2ohms but that it has 2 voice coils. It should work then right?

and just to double check, I see you said subS, I only have this one sub, not two.

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Here is a link with all the info on it

http://www.sonicelectronix.com/item_5351_Diamond+Audio+D312D2.html

I'm guessing I can do it then, right? I mean it says it's impedance is 2ohms but that it has 2 voice coils. It should work then right?

and just to double check, I see you said subS, I only have this one sub, not two.

Oh, true, yeah I know you have one, that was just a typo, if you had two you would have to wire them to 2ohms. But don't worry about that atm.

Yep 1 sub dual 2ohm coils 2ohms+2ohms=4ohms! Yay! :good:

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

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Oh, true, yeah I know you have one, that was just a typo, if you had two you would have to wire them to 2ohms. But don't worry about that atm.

Yep 1 sub dual 2ohm coils 2ohms+2ohms=4ohms! Yay! :good:

Bassl0va, Thanks so much for answering all the questions and for all the help! I really appreciate it. Figuring out how to wire this was driving me nuts.

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Bassl0va, Thanks so much for answering all the questions and for all the help! I really appreciate it. Figuring out how to wire this was driving me nuts.

You're welcome, glad to help if you need anything else :)

My RE MT 18" wall build Former build, farewell beloved wall.In progress, Toyota Starlet build

This forum has a massive boner for ridiculous electrical upgrades.

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