Will my stock electrical system work???

noxious1

Original poster
Member
Dec 24, 2012
22
I am in the process of installing my new audio system. Here is what I am doing.
Pioneer AVP1400DVD head unit
Pioneer GEX-P920XM XM satellite Radio Tuner
Polk DB-6501 6.5-inch 2-way component system 100 watts continuous 300 watts max
Polk DB-651 6.5 coxial speakers 55 watts continuous 165 watts max
Cerwin Vega 4 channel amp-Model: VEGA500.4
MAX Power: 250W x 4 @ 2Ω
RMS Power: 125W x 4 @ 2Ω
2-12" Rockford Fosgate P3D4 subs 500 watts continuous 1000 watts max
Cerwin Vega- Stroker 1000.1 amp
4 ohms: 400 watts x 1 chan.
2 ohms: 750 watts x 1 chan.
1 ohm: 1000 watts x 1 chan.

My question is will my stock electrical system be ok or am I going to have to look at upgrading it?
 

The_Roadie

Lifetime VIP Donor
Member
Nov 19, 2011
9,957
Portland, OR
The alternator is good for 150A. I'm not an audio specialist although I am an electrical engineer. I would guess that system would need the "Big 3" upgrade as it's called, and wiring straight to the battery, but would not need an aux battery back near the sub amp. But there are true audio professionals on the forum who should chime in soon. (If only to correct my wrongness....:wink:)
 

Ed H

Member
Oct 18, 2012
167
You should be fine. Make sure you run a fat power cable from the battery to the amps. Will the amps be housed together, or will they be separate (i.e. one up front, one in back)? If separate, you can run a small gauge wire to the front amp.

Don't forget a fuse(s) on the line very close to the battery. I am sure you know that. Also, grounding it just as important as power feeds, so use good quality cable, connectors, and ground location.

Your headlights may dim when the bass hits at idle, but some people think that is cool. :cool:

If you need a bigger alternator, upgrade later.

Edit - Note the Polks are 4ohm speakers, so they will pull less power than what you have listed. Make sure you wire the subs to keep some resistance there - i.e. not 1 ohm.
 

MAY03LT

Member
Nov 18, 2011
3,420
Delmarva
The audio guys from back in the day agreed that anything up to 1,200 watts is ok with the stock alt/batt (provided that the batt is in good condition) so you should be good there.
 

northcreek

Member
Jan 15, 2012
3,319
WNY

Attachments

  • solar-generator.jpg
    solar-generator.jpg
    26.1 KB · Views: 14

The_Roadie

Lifetime VIP Donor
Member
Nov 19, 2011
9,957
Portland, OR
I see Loverotties answered your question back on the old site incorrectly. That's why he's there and we're here. :rotfl:

He thinks the system will require 283 amps, and that the vehicle has two different alternators available. Wrong. He might think he's a Roadie, but he's not.
 

Hypnotoad

Member
Dec 5, 2011
1,584
I'm sure it'll work just fine, but I have a feeling that you'll wish you had a high output alternator and extra batteries later. That's assuming you're planning on wiring the subs up at 1 ohm. Upgrade the big 3 for sure.
 

noxious1

Original poster
Member
Dec 24, 2012
22
I was thinking that I may need an auxiliary battery but was not sure. So what exactly do I need for the big 3 upgrade? Thanks for all of the replies the old site was not much help.
 

noxious1

Original poster
Member
Dec 24, 2012
22
Thanks that helps alot. So if I do the big 3 and upgrade my battery I should be ok?
 

camper1

Member
Oct 25, 2012
4
If you add a capacitor it will help out the sound quality quite a bit especially with 2 12" subs!
 

Forum Statistics

Threads
23,321
Posts
637,914
Members
18,526
Latest member
GODSBROOKS

Members Online