Do i need a battery

[Diesel250 10+ year member]

I'm gonna be powering 1 Digital Design 9512 with a DD M2b amp rated at 1700rms-1ohm@12v

2200rms-1ohm@14v. Ill be running 4g wire from to the neg straight back to the amp along with a 0g wire for the pos. Would i need a extra battery by the amp??

Thank you

 

---------- Post added at 12:58 PM ---------- Previous post was at 12:57 PM ----------

 

Ive already done the big 3

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[audiobaun 5,000+ posts]

With that amount of power,Id say deff.And I hope you are/have a HO alternator,imn which I highly recommend if you want to get any juice out of that amp

 

[Fiendstolemyamp 10+ year member]

You need to run zero for your negative run as well, 4 ga isn't gonna cut it.

 

[shpatb 10+ year member]

Both positive and negative should be the same size.

 

[Diesel250 10+ year member]

Alright....i have the og wiring installed.

I decided not to run negative from the front to the back, i just grounded it to the cab.

I've also purchased a khc2000. Would that battery and a 200 amp alt be sufficient enough?

Thanks

 

[KINGDELL91 10+ year member]

Negative should be equal to or larger then Power. is the big 3 done in 1/0?

 

[jockhater2 10+ year member]

Alright....i have the og wiring installed.I decided not to run negative from the front to the back, i just grounded it to the cab.

I've also purchased a khc2000. Would that battery and a 200 amp alt be sufficient enough?

Thanks

Grounds are just as important as positive. If you check my signature. I have 3 runs of power and 3 runs of ground. Along with grounding to the frame and engine block.

The absolute best way to know if your going to need to need to beef up your electrical. Is to see what your voltage is at when everything is done.

For instance. I have a 380 amp alternator and 3 batts. My voltage stays around 13.5 on heavy playing. I don't have to. But I am going to add a 2nd alternator so my voltage stays @ 14.4 no matter what. I want my amp making all of its power

 

[Diesel250 10+ year member]

Negative should be equal to or larger then Power. is the big 3 done in 1/0?

Negative is the same size, just grounded straight to the cab....i have the big 3 done in 4g

 

[Diesel250 10+ year member]

Grounds are just as important as positive. If you check my signature. I have 3 runs of power and 3 runs of ground. Along with grounding to the frame and engine block.
The absolute best way to know if your going to need to need to beef up your electrical. Is to see what your voltage is at when everything is done.

For instance. I have a 380 amp alternator and 3 batts. My voltage stays around 13.5 on heavy playing. I don't have to. But I am going to add a 2nd alternator so my voltage stays @ 14.4 no matter what. I want my amp making all of its power

Well the sub is rated at 1500rms....so if my volts don't drop below 12.5...i should be fine.

I hook up a cteck charger to my batteries once a week just to give them a nice charge but sometimes they don't even need it

 

[jockhater2 10+ year member]

Well the sub is rated at 1500rms....so if my volts don't drop below 12.5...i should be fine.I hook up a cteck charger to my batteries once a week just to give them a nice charge but sometimes they don't even need it

12.5 wouldn't make me happy.

 

[Diesel250 10+ year member]

12.5 wouldn't make me happy.

Lol 12.5 is just for now. I wanna make sure my investment is safe...later on i will do the upgrades to push the limits

 

[KINGDELL91 10+ year member]

Negative is the same size, just grounded straight to the cab....i have the big 3 done in 4g

I would go 1/0 there also..

 

[jockhater2 10+ year member]

Lol 12.5 is just for now. I wanna make sure my investment is safe...later on i will do the upgrades to push the limits

12.5 isn't really playing it safe. What about if you have lights on/heat/ac/navigation and so on.

 

[Diesel250 10+ year member]

12.5 isn't really playing it safe. What about if you have lights on/heat/ac/navigation and so on.

I meant 12.5 with everything on....brights and ac on

 

[jockhater2 10+ year member]

I meant 12.5 with everything on....brights and ac on

oh ok.