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DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: October 15, 2005 at 8:40 AM / IP Logged  

To check for ground resistance, measure ohms between the amplifier ground terminal and the battery ground terminal.  I recomend disconnecting the positive battery terminal first just in case.  Ideally this reading will be less than 1 ohm, although in reality readings up to a couple of ohms can be fine.

Glad to hear you are being assisted by a mechanic.  I'd ask him or her what they want you to buy.

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Reeceddogg 
Copper - Posts: 329
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Joined: September 23, 2002
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Posted: October 15, 2005 at 12:31 PM / IP Logged  
what do you all think about two crossfire vr1000d bridged that would do 2000rms@ 2ohm(12.5v). Think it'll sound better than the directed 2400d? or maybe another amp?
gus1 
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Posted: October 15, 2005 at 2:39 PM / IP Logged  
The DEI makes a lot of power.....
As far as "sound"? A properly designed amp shouldn't "sound" like anything....
Gus
Wherever I go, that is where I end up......
Reeceddogg 
Copper - Posts: 329
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Posted: October 15, 2005 at 10:19 PM / IP Logged  
sorry... i'm setting up a high spl system
Reeceddogg 
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Posted: October 15, 2005 at 10:38 PM / IP Logged  
maybe i'm missing something but how can i have too amps using 200a fuses each be fused at the battery with a fuse less than the total amperage of the system. wouldn't that restrict the amount of current going to the amps an thus make the fuse blow. I'm confused now since i went to a local shop, that 45 mins away, and he one solox 18 and two Colossus amps with only a 150a fuse at the battery. also he didn't change his alternator and had four batteries. a kinetic 2400(that i plan on getting myself), and optima red top and yellow top. all three were in the trunk plus he had his stock battery under the hood.
stevdart 
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Posted: October 16, 2005 at 8:22 AM / IP Logged  
I don't get what you're asking here.  Why tell us about some guy's system you looked at?  I didn't read anything here from anybody that told you to fuse the main power at less than the amps' fuse ratings....maybe you should re-read DYohn's posts...
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Reeceddogg 
Copper - Posts: 329
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Posted: October 17, 2005 at 10:30 AM / IP Logged  
gus1 wrote:
We install a lot of the 2400's at a 2ohm load. Usually run 4ga back to the amp, throw in an 80A fuse, and never have a problem. I mean, even running 2 of them, unless he is hammering them balls out all day long at 1 ohm, should still be good on 0ga, or even 2ga back to distribution, 4 over to the amps (what's the rating on 4ga for 3 feet?? 200A??) Park a 200A breaker at the battery (like a stock alternator is going to produce anything close to that anyways....
Gus
this is what i was refering to. but i went to a shop to try and get some more info and he told me that. I'm just trying to see who's right.
Alpine Guy 
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Posted: October 17, 2005 at 11:55 AM / IP Logged  
Got money? Good, here's how you do it, 1), purchase a 200+ amp alternator, 2) get a big battery kinetik comes to mind, 3) run 2 runs on 1/0 awg both fused at 350 amps each (anl fuse), then run them to a distrobution block that has 2 1/0 awg inputs and 4 4 awg outputs, fuse each 4 awg output to 125-150 amps "midi fuse" 4) Dont forget to do the big 3 with 1/0 awg 5) Spend hours/days/weeks building your box, your spending this much money, so be shure to have the best dam box's available.
2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Reeceddogg 
Copper - Posts: 329
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Posted: October 17, 2005 at 3:15 PM / IP Logged  
that's all i needed to know
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