what can i do to keep a constant current?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103043
Printed Date: July 07, 2025 at 1:42 PM
Topic: what can i do to keep a constant current?
Posted By: hookedonaudio
Subject: what can i do to keep a constant current?
Date Posted: March 13, 2008 at 8:55 PM
I now plan to run 2 lanzar 2000 watt 1 channel amps, I already have 1 lanzar pushing my 2 ohm rockford power hx2 subs and a 1000 watt sony xplod running all of my highs. When the bass hits, my head and dash lights look like a disco party. I upgraded my alternator to a 90 amp and also have a spare red top optima in my trunk, I bought 2 scosche caps with the digital voltage readout and all they did was show the drop in voltage when the bass hit. Do I need a nuclear power plant in my trunk to prevent head and dash light dimming?
Replies:
Posted By: i am an idiot
Date Posted: March 13, 2008 at 9:14 PM
You UPGRADED to the 90 amp alternator? Is that the biggest one available for your vehicle? If you would have asked us before you bought the capacitors, we could have saved you that money. How much are the trunk mounted Nuclear Power Plants selling for these days?
Posted By: hookedonaudio
Date Posted: March 13, 2008 at 11:07 PM
I can get a 130 amp alternator for a little over 400 but putting a 400 dollar alternator on my car would be like putting a gold nugget in a turd. I'd rather just rattle the quarter panels off and get a new car, oh and I think ebay might have a trunk mountable nuke plant in there somewhere.
Posted By: jmelton86
Date Posted: March 13, 2008 at 11:13 PM
So, you added a Redtop in the trunk? -What kind of battery is in the engine bay? Also, the caps aren't helping you out, at all. They're only making things worse. Have you done the Big3 upgrade? You should have when you upgraded your alternator. With your two off-brand (yep, Sony included) '1000watt' amps, you're only getting about 500watts RMS for the both of them -if that. That's not that much. What does your voltage drop to on hard notes? ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: aznboi3644
Date Posted: March 13, 2008 at 11:57 PM
yeah...those amp won't put out more than 500 watts each MAYBE.
If they are the Opti 2000Ds than yeah they are decent amps...I doubt they are
Posted By: jmelton86
Date Posted: March 14, 2008 at 12:36 AM
The reason I say 500watts for the both of them is because I once had a Lanzar '1000watt' amp (30a worth of fusing) that only put out 250watts. If the Sony is CEA-compliant it may put out a little more than that, but I still doubt it LOL.
------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: aznboi3644
Date Posted: March 14, 2008 at 12:45 AM
All of the lanzar amps are crap except the Opti-line...everything else is super overrated crap.
I have a Lanzar "600 WATT MAX AMP"...fused at 20 amps...yeah it puts out around 80-100 watts lol
Posted By: hookedonaudio
Date Posted: March 15, 2008 at 2:55 PM
The lanzar amp has 4 30 amp fuses and the profile has 4 25 amp fuses so I take it the lanzar has a bigger power supply than the profile. I hope it will push decently with both amps on both subs because i'm married and my wife, yes (boss)limits my spending so this is all I have to work with.
Posted By: aznboi3644
Date Posted: March 15, 2008 at 3:57 PM
I'd rather have a smaller higher quality amp that puts out real power but less than an amp that puts out crappy power
Posted By: sedate
Date Posted: March 15, 2008 at 6:39 PM
aznboi wrote:
I have a Lanzar "600 WATT MAX AMP"...fused at 20 amps...yeah it puts out around 80-100 watts lol
Oh come on aznboi! - You could pack it in dry ice and run 18 volts to it. You'll get ur 600 watts!  ------------- "I'm finished!" - Daniel Plainview
Posted By: sedate
Date Posted: March 15, 2008 at 6:45 PM
hookedonaudio wrote:
I now plan to run 2 lanzar 2000 watt 1 channel amps, I already have 1 lanzar pushing my 2 ohm rockford power hx2 subs and a 1000 watt sony xplod running all of my highs. When the bass hits, my head and dash lights look like a disco party. I upgraded my alternator to a 90 amp and also have a spare red top optima in my trunk, I bought 2 scosche caps with the digital voltage readout and all they did was show the drop in voltage when the bass hit. Do I need a nuclear power plant in my trunk to prevent head and dash light dimming?
Um. Okay outline all the power wiring in your car. Have you done the 'big 3' ? What is that Red Top doing? How is it wired to the rest of the car? What kind of battery is under the hood? What make/model of car is it? ------------- "I'm finished!" - Daniel Plainview
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