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Quick Amperage/voltage question


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Soon my mechman 240amp alternator will arrive. I'm considering doing some SPL subwoofer and monoblock upgrades. Looking at picking up a DC level 5 15" and DC 3.5K amp. I have an optima yellow top under the hood and a XS power HC800 in the trunk. From what I calculated, the alternator would not be powerful enough and I would more than likely get voltage drops. Can anyone confirm this would be the case with that setup.

Front Mids/Tweeters: Focal K2 POWER


Rear Deck Mids: Focal 165ca


Subwoofer: (1) DC Level 5 15"


Highs/Mids Amp: Mosconi Gladen One 120.4


Monoblock: DC 3.5K


Headunit: Kenwood Excelon DNN990HD


Batteries: Optima Yellow Top (hood), Kinetik HC600 (trunk), XS Power D3100 (trunk)


Car: Accord '08 Coupe... terrible trunk shape : ' (

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without some better batteries, you would have some bad voltage drop. I would recommend upgrading the starting battery to something like a XS D3400, or whatever the biggest battery you can fit under the hood is and then having a battery bank of XS D3100's in the rear. Also you said you have a XS power battery in the rear, but the model number you provided is for a kinetik battery, I was just curious as to which it is.

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250 Mechman Alternator
Sky High Car Audio Big 3
XS Power D3400
Rockford Fosgate 1/0 amp kit
Rockford Fosgate T1500-1bdcp
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DC Audio Lvl 4 12"
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/\ I second jhunt on the d3400 underhood and couple d3100s in the back. Did u do big 4 how many runs of 1/0 ofc do u have to back. Do u have frame grounds?

On 3/28/2014 at 4:22 PM, KyLar96 said:

Its all about the music anyway..... Do a proper install, something your happy with, Fuck everyone else...... improve in time, where you can..... its not rocket science...

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Rich I have one run of 1/0 to back battery, electrical system is 0 gauge under hood. I just did some researching around, maybe I am better off going with a DC level 5 12" on a Skar Audio SK-2500.1D? That way I wouldn't get voltage drops on what I currently have? Would that sub run fine on that amp or would it be severely under powered? I hope that setup would slapped A LOT harder than the currently 13w7 I have now on a HD1200.

Front Mids/Tweeters: Focal K2 POWER


Rear Deck Mids: Focal 165ca


Subwoofer: (1) DC Level 5 15"


Highs/Mids Amp: Mosconi Gladen One 120.4


Monoblock: DC 3.5K


Headunit: Kenwood Excelon DNN990HD


Batteries: Optima Yellow Top (hood), Kinetik HC600 (trunk), XS Power D3100 (trunk)


Car: Accord '08 Coupe... terrible trunk shape : ' (

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Rich I have one run of 1/0 to back battery, electrical system is 0 gauge under hood. I just did some researching around, maybe I am better off going with a DC level 5 12" on a Skar Audio SK-2500.1D? That way I wouldn't get voltage drops on what I currently have? Would that sub run fine on that amp or would it be severely under powered? I hope that setup would slapped A LOT harder than the currently 13w7 I have now on a HD1200.

I'm curious why you choose the skar 2500.

If your going to buy that new you would be better off buying a used 3.5k amp that will run you almost the same amount of cash.

And if you go the other route and buy that skar, assuming you have a good xs power batt in the back and upgraded under the hood. Your voltage should stay in the 13s on most songs.

And Yea your definitely going to see a huge increase over the JL.

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Sundown ZV4 12" D1

Tantric HD 12" D2

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Sundown 2000d @ 1 ohm

XS Power XP2000

Sky High Sound Deadener

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I also have a mechman 240A alternator. With a 4k amp I was dropping down to 12.9 full tilt with a d925 in the front and a D3100 in the rear. With a 2200w amp I drop no more than 13.4 full tilt.

*when charging at 14.0 in the summer

 

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On 10/3/2013 at 10:00 AM, ROLEXrifleman said:

Anyone who says they knew everything they wanted out of life at 19 can go suck a bag of dicks cause they are lying to themselves or brought up in a cult.

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