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Voltage drop.


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Posted

Been running my system for a few months now without issue. I have all 1/0 power and grounds and big 3. Noticed for the first time today I'm getting like a 1.5V drop at high volume only when bass hits. I have stock battery and alt but I'm only running a total of 750 rms pulling 110A. Think battery or alt may be on the way out?

3bc3a7ec-d90c-40a7-928f-eef8c019b42b_zpswww.facebook.com/EKCASA

System:

All Rockford Fosgate

Front: 2 Pair Prime 6.5's and 1 pair Prime 5.25 Components

Rear: 1 Pair Prime 6.5 3 Ways

Subs: 4 Prime R2D2-12's

Amps:

Front: Prime R250X4

Subs: 2 Prime 500X1d's

HU: JVC KD-AR959BS

2 Optima Yellow Tops

Singer 230A H/O Alt.

Lots of KnuKonceptz 1/0 and accessories

105 Sq ft Kno Knoise deadener

Posted

Possibly. Wheres your voltage meter wired to?

Did you check all the obvious things.. like your grounds?

On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

Mitsubishi 3000GT (Old Build)

Headunit: Pioneer 80PRS

Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids

Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies

Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s

Electrical :Singer 260A Alt & JY Power Lithium

 

2005 Chevy Colorado Ext Cab

Headunit: Pioneer 80PRS

Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms

Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s

Electrical: Singer "390" and JY Power

My Official Feedback Thread

Posted

1/0 for a rated 700 watts? Damn.

Go big or go home lol

On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

Mitsubishi 3000GT (Old Build)

Headunit: Pioneer 80PRS

Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids

Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies

Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s

Electrical :Singer 260A Alt & JY Power Lithium

 

2005 Chevy Colorado Ext Cab

Headunit: Pioneer 80PRS

Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms

Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s

Electrical: Singer "390" and JY Power

My Official Feedback Thread

Posted

somethings wrong, my voltage hardly moves with 1k on a 90 amp alt..

Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell

Kenwood H/U

1/0 wire,

136 amp alt 200 ah batteries 12.7 daily

2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts

Mb quart 125.4 wired to 4 aura 6's

3.6 cube box tuned to 36 plays down to 23hz

Posted

go get alt and battery load tested.

look for loose connection points in the wire you've added. at the wire lugs (tug on them fairly hard. they shouldn't budge at all). at the input and output of the fuse block. the screws that hold the fuse down (if running an anl/mini anl) or make sure the fuse isn't easy to pull out if using a maxi style fuse. check the ground wire too.

Posted

Possibly. Wheres your voltage meter wired to?

Did you check all the obvious things.. like your grounds?

1/0 for a rated 700 watts? Damn.

Are connections good. Good ground?

What's the lowest voltage you saw

1/0 for a rated 700 watts? Damn.

Go big or go home lol

go get alt and battery load tested.

look for loose connection points in the wire you've added. at the wire lugs (tug on them fairly hard. they shouldn't budge at all). at the input and output of the fuse block. the screws that hold the fuse down (if running an anl/mini anl) or make sure the fuse isn't easy to pull out if using a maxi style fuse. check the ground wire too.

Check your battery. Also, if you have a regular starter battery and not an agm, it probably just needs a recharging. 700 rms aint shit to an agm but to a regular starter it could be a problem.

Noticed it on the stock voltmeter first then checked the digital on the cap same thing.

Didn't have time to check ground yet but pretty sure they are solid I have lock washers on all the bolts and compression fittings on the fuse and ground blocks.

Yeah 1/0 on 700, but it is CCA and went over so I don't have to do complete rewire when I upgrade.

Over kill never hurts.

All the ring terminals are soldered and rock solid.

Battery is a starter Napa Premium.

3bc3a7ec-d90c-40a7-928f-eef8c019b42b_zpswww.facebook.com/EKCASA

System:

All Rockford Fosgate

Front: 2 Pair Prime 6.5's and 1 pair Prime 5.25 Components

Rear: 1 Pair Prime 6.5 3 Ways

Subs: 4 Prime R2D2-12's

Amps:

Front: Prime R250X4

Subs: 2 Prime 500X1d's

HU: JVC KD-AR959BS

2 Optima Yellow Tops

Singer 230A H/O Alt.

Lots of KnuKonceptz 1/0 and accessories

105 Sq ft Kno Knoise deadener

Posted

compression fittings? Might be your issue there. regular wire lugs or bust

edit. unless you mean the ones with the Allen wrench screws. I was thinking of the knukonceptz kompression stuff

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